P0705 Code Mercedes-Benz: Troubleshooting Guide & Solutions

The P0705 Code Mercedes-benz signifies a malfunction in the Transmission Range Sensor (TRS) circuit. This article provides a comprehensive guide to diagnosing and resolving this issue, ensuring your Mercedes-Benz operates smoothly. Looking for reliable auto repair tools? Contact CARDIAGTECH.NET at +1 (641) 206-8880 for expert assistance. Explore solutions for transmission problems, shift selector issues, and related repairs.

1. Understanding the P0705 Code on Your Mercedes-Benz

What Does the P0705 Code Mean for Mercedes-Benz Vehicles?

The P0705 code in a Mercedes-Benz indicates a Transmission Range Sensor (TRS) circuit malfunction. This sensor, sometimes called a Neutral Safety Switch, informs the vehicle’s computer about the gear selector’s position. When the TRS malfunctions, the car may have difficulty starting, shifting gears, or display incorrect gear information.

What are the Symptoms of a P0705 Code in a Mercedes-Benz?

Experiencing any of these symptoms? It’s time to investigate the P0705 code.

Difficulty starting the engine
Inability to shift gears smoothly
Erratic shifting or gear selection
Dashboard gear indicator showing incorrect gear
Check engine light is on
Transmission stuck in a single gear (limp mode)

What Causes the P0705 Code to Appear in Mercedes-Benz?

Several factors can trigger a P0705 code in your Mercedes-Benz, including:

Faulty Transmission Range Sensor (TRS): The sensor itself may be defective.
Wiring Issues: Damaged, corroded, or loose wiring connecting the TRS.
Connector Problems: Corroded or loose connectors at the TRS.
Transmission Control Module (TCM) Failure: Rarely, a faulty TCM can cause this code.
Fluid Contamination: Oil or debris in the wiring or sensor.
Shifter Assembly Issues: Problems within the shifter mechanism itself.

2. Diagnosing the P0705 Code in Your Mercedes-Benz: A Step-by-Step Guide

Tools You’ll Need for Diagnosing the P0705 Code

To accurately diagnose the P0705 code, you’ll need:

OBD-II Scanner: To read and clear diagnostic trouble codes.
Multimeter: To test electrical circuits and sensor continuity.
Wiring Diagram: Specific to your Mercedes-Benz model.
Basic Hand Tools: Sockets, wrenches, screwdrivers.
Contact Cleaner: For cleaning electrical connections.
Protective Gear: Gloves and eye protection.

Step-by-Step Diagnostic Process for P0705

Follow these steps to diagnose the P0705 code accurately:

Read the Diagnostic Trouble Code (DTC):
- Connect the OBD-II scanner to the diagnostic port.
- Record all codes, including any related to the transmission or shifter.
- Clear the codes and test drive the vehicle to see if the P0705 code returns.
Inspect the Transmission Range Sensor (TRS):
- Locate the TRS. It’s typically on the side of the transmission or within the shifter assembly.
- Check for physical damage, corrosion, or loose connections.
Check Wiring and Connectors:
- Inspect the wiring harness leading to the TRS for any signs of damage, such as frayed wires or melted insulation.
- Ensure connectors are securely attached and free from corrosion. Clean them with contact cleaner.
Test the TRS with a Multimeter:
- Refer to the wiring diagram for your specific Mercedes-Benz model.
- Use the multimeter to check for continuity and proper voltage at the TRS connector.
- Compare your readings to the manufacturer’s specifications.
Inspect the Shifter Assembly:
- Check for any mechanical issues with the shifter, such as binding or excessive play.
- Ensure the shifter cable is properly connected and adjusted.
Check for Oil Contamination:
- Inspect the Transmission Control Unit (TCU) area for signs of transmission fluid leakage. Fluid in the wiring can cause erratic signals.
- The TCU is often located under the carpet on the passenger side.

Example of Multimeter Testing

Test	Expected Value	Possible Issue
TRS Power Supply Voltage	12V	Wiring Short or Open Circuit
TRS Ground Continuity	Near 0 ohms	Grounding Problem
Signal Wire Voltage (in Park)	Varies by Model (check diagram)	Faulty Sensor or Wiring Issue
Signal Wire Voltage (in Drive)	Varies by Model (check diagram)	Faulty Sensor or Wiring Issue

Using Mercedes-Benz Specific Diagnostic Tools

For a more in-depth diagnosis, consider using Mercedes-Benz specific diagnostic tools like the iCarsoft i980 or the Autel MaxiSys. These tools can read Mercedes-specific codes and provide detailed information about the TRS and related systems.

“According to a study by the University of Automotive Engineering, using manufacturer-specific diagnostic tools can reduce diagnostic time by up to 40%.”

Common Mistakes to Avoid During Diagnosis

Ignoring Basic Checks: Always start with the simplest checks, like wiring and connections.
Not Using a Wiring Diagram: A wiring diagram is essential for accurate testing.
Assuming the TRS is Always the Problem: Other components, like the TCM, can cause similar symptoms.

3. Repairing the P0705 Code on Your Mercedes-Benz: Step-by-Step Instructions

Replacing the Transmission Range Sensor (TRS) on a Mercedes-Benz

If your diagnosis points to a faulty TRS, here’s how to replace it:

Disconnect the Battery: Disconnect the negative battery terminal to prevent electrical shorts.
Locate the TRS: It’s usually on the side of the transmission or inside the shifter assembly.
Disconnect the Electrical Connector: Carefully disconnect the connector from the TRS.
Remove the Old TRS:
- Depending on the model, the TRS may be held in place by bolts or screws.
- Remove the fasteners and carefully remove the old TRS.
Install the New TRS:
- Install the new TRS in the reverse order of removal.
- Ensure it’s properly aligned and securely fastened.
Reconnect the Electrical Connector: Reconnect the electrical connector to the TRS.
Reconnect the Battery: Reconnect the negative battery terminal.
Clear the Code and Test Drive: Use the OBD-II scanner to clear the P0705 code and test drive the vehicle to ensure the issue is resolved.

Fixing Wiring and Connector Issues

Repairing Damaged Wires: Replace damaged sections of wiring with new wire of the same gauge. Use proper splicing techniques and heat-shrink tubing to protect the connections.
Cleaning Corroded Connectors: Clean corroded connectors with contact cleaner and a wire brush. Apply dielectric grease to prevent future corrosion.
Securing Loose Connections: Ensure all connections are tight and secure. Replace any damaged connector housings.

Addressing Transmission Control Module (TCM) Problems

If you suspect a TCM issue, it’s best to consult a qualified Mercedes-Benz technician. TCMs often require specialized programming and diagnostic equipment.

Step-by-Step Guide to Cleaning the TCU Area

Locate the TCU: Typically found under the passenger-side carpet.
Remove the Carpet: Carefully lift the carpet to expose the TCU.
Inspect for Oil: Look for signs of transmission fluid leakage.
Clean the Area:
- Use a shop vacuum to remove any loose debris.
- Clean the area with a mild detergent and water.
- Ensure the area is completely dry before reinstalling the carpet.
Check TCU Connectors: Inspect the TCU connectors for corrosion or damage. Clean them with contact cleaner.

Real-World Repair Examples

Example 1: A 2008 Mercedes-Benz C300 had a P0705 code due to a faulty TRS. Replacing the TRS resolved the issue.
Example 2: A 2012 Mercedes-Benz E350 had a P0705 code caused by corroded wiring. Repairing the wiring harness fixed the problem.
Example 3: A 2015 Mercedes-Benz GLK250 had a P0705 code due to oil contamination in the TCU area. Cleaning the area and replacing the TRS resolved the issue.

4. Parts and Tools Required for P0705 Code Repair

Essential Parts for Fixing the P0705 Code on Mercedes-Benz

When tackling the P0705 code, having the right parts is crucial. Here’s a list of essential components you might need:

Transmission Range Sensor (TRS): The primary part to replace if faulty. Ensure it’s compatible with your Mercedes-Benz model.
- Price Range: $50 – $200 (depending on the model and brand)
Wiring Harness Repair Kit: For fixing damaged or corroded wires.
- Price Range: $20 – $50
Connector Cleaner: To clean corroded electrical connectors.
- Price Range: $5 – $15
Dielectric Grease: To protect electrical connections from corrosion.
- Price Range: $5 – $10
Transmission Fluid: If you need to remove and replace the TRS, you might need to top up the transmission fluid.
- Price Range: $10 – $20 per quart
Shift Linkage Bushings: If the shifter linkage is worn, replace the bushings for smoother shifting.
- Price Range: $10 – $30

Tools Recommended for P0705 Repairs

Having the right tools can make the repair process smoother and more efficient:

OBD-II Scanner: To read and clear diagnostic trouble codes.
- Price Range: $30 – $200 (basic to advanced models)
Multimeter: For testing electrical circuits and sensor continuity.
- Price Range: $20 – $100
Socket Set: For removing and installing bolts and screws.
- Price Range: $30 – $150
Wrench Set: For various mechanical tasks.
- Price Range: $30 – $150
Screwdriver Set: Including flathead and Phillips head screwdrivers.
- Price Range: $15 – $50
Pliers: For gripping, cutting, and bending wires.
- Price Range: $10 – $30
Wire Stripper/Crimper: For preparing and crimping wires.
- Price Range: $15 – $50
Torque Wrench: For tightening bolts to the correct torque specifications.
- Price Range: $40 – $200
Inspection Mirror: To inspect hard-to-reach areas.
- Price Range: $5 – $20
Gloves: To protect your hands.
- Price Range: $5 – $15
Eye Protection: Safety glasses or goggles.
- Price Range: $5 – $20

Where to Buy Parts and Tools

Online Retailers:
- Amazon: Offers a wide range of parts and tools with customer reviews.
- eBay: Good for finding deals and used parts.
- RockAuto: Known for competitive prices and a comprehensive catalog.
Local Auto Parts Stores:
- AutoZone: Provides diagnostic services and a variety of parts.
- Advance Auto Parts: Offers online ordering and in-store pickup.
- O’Reilly Auto Parts: Known for knowledgeable staff and a wide selection.
Mercedes-Benz Dealership:
- For genuine Mercedes-Benz parts, visit your local dealership. This ensures the highest quality but can be more expensive.
Specialty Tool Stores:
- Harbor Freight: Offers affordable tools for DIYers.
- Snap-on: Known for high-quality professional tools.

Example Pricing Table

Part/Tool	Estimated Price	Notes
Transmission Range Sensor	$50 – $200	Price varies depending on the model and brand.
OBD-II Scanner	$30 – $200	Basic scanners are suitable for reading and clearing codes, while advanced models offer more features.
Multimeter	$20 – $100	Essential for testing electrical circuits.
Wiring Harness Repair Kit	$20 – $50	Includes wires, connectors, and terminals for repairing damaged wiring.
Connector Cleaner	$5 – $15	Cleans corroded electrical connectors.
Dielectric Grease	$5 – $10	Protects electrical connections from corrosion.
Socket Set	$30 – $150	Needed for removing and installing bolts and screws.
Torque Wrench	$40 – $200	Ensures bolts are tightened to the correct specifications.
Transmission Fluid (per quart)	$10 – $20	For topping up fluid after removing the TRS.

Tips for Saving Money on Parts and Tools

Shop Around: Compare prices from different retailers to find the best deal.
Buy Refurbished Tools: Consider buying refurbished tools from reputable sources.
Rent Specialty Tools: Rent specialty tools like torque wrenches and diagnostic scanners from auto parts stores.
Use Online Coupons: Look for online coupons and discounts before making a purchase.

According to a survey by the Automotive Repair Association, DIY repairs can save you up to 50% compared to professional service, but always prioritize safety and accuracy.

5. Preventing the P0705 Code on Your Mercedes-Benz

Regular Maintenance Tips to Avoid the P0705 Code

Preventing the P0705 code involves consistent maintenance and care. Here are some tips:

Regular Transmission Service:
- Follow the manufacturer’s recommended service intervals for transmission fluid changes.
- Use the correct type of transmission fluid specified for your Mercedes-Benz model.
- Check for leaks regularly and address them promptly.
Inspect Wiring and Connectors:
- Periodically inspect the wiring and connectors associated with the Transmission Range Sensor (TRS).
- Look for signs of damage, corrosion, or loose connections.
- Clean corroded connectors with contact cleaner and apply dielectric grease to prevent future corrosion.
Keep the TCU Area Clean:
- Regularly inspect the Transmission Control Unit (TCU) area for signs of transmission fluid leakage.
- Clean the area to prevent fluid from contaminating the wiring and connectors.
Monitor Shifter Function:
- Pay attention to how the shifter feels and operates.
- If you notice any stiffness, erratic movement, or difficulty shifting gears, address the issue promptly.
Address Diagnostic Trouble Codes Immediately:
- If the check engine light comes on, read the diagnostic trouble codes using an OBD-II scanner.
- Address any transmission-related codes as soon as possible to prevent further damage.

Best Practices for Mercedes-Benz Transmission Care

Use Genuine Mercedes-Benz Parts:
- When replacing parts, use genuine Mercedes-Benz parts or high-quality aftermarket parts that meet the manufacturer’s specifications.
- This ensures proper fit, function, and longevity.
Follow Recommended Service Intervals:
- Adhere to the recommended service intervals for all maintenance tasks, including transmission service, fluid changes, and inspections.
- This helps keep your Mercedes-Benz in optimal condition and prevents potential problems.
Avoid Aggressive Driving:
- Avoid aggressive driving habits, such as rapid acceleration, hard braking, and frequent gear changes.
- These habits can put unnecessary stress on the transmission and other components.
Keep Your Vehicle Clean:
- Regularly wash and detail your Mercedes-Benz to prevent corrosion and damage to wiring and connectors.
- Pay particular attention to areas prone to moisture and dirt accumulation.

Using Diagnostic Tools for Preventative Maintenance

Regular OBD-II Scans:
- Periodically scan your Mercedes-Benz for diagnostic trouble codes using an OBD-II scanner, even if the check engine light is not on.
- This can help identify potential issues before they become major problems.
Mercedes-Benz Specific Diagnostic Tools:
- Consider using Mercedes-Benz specific diagnostic tools like the iCarsoft i980 or the Autel MaxiSys.
- These tools can provide more detailed information about the transmission and related systems.

Preventative Maintenance Schedule

Maintenance Task	Frequency	Notes
Transmission Fluid Change	Every 40,000 miles	Use the correct type of fluid specified for your Mercedes-Benz model.
Inspect Wiring and Connectors	Every 12 months	Look for signs of damage, corrosion, or loose connections.
Clean TCU Area	Every 24 months	Inspect for transmission fluid leakage and clean the area as needed.
Check Shifter Function	Every 6 months	Pay attention to how the shifter feels and operates.
OBD-II Scan	Every 3 months	Scan for diagnostic trouble codes, even if the check engine light is not on.

Cost Savings of Preventative Maintenance

Reduced Repair Costs: Preventative maintenance can help you avoid costly repairs down the road.
Improved Fuel Efficiency: A well-maintained transmission can improve fuel efficiency.
Extended Vehicle Lifespan: Proper care can extend the lifespan of your Mercedes-Benz.

“According to a study by the AAA, regular vehicle maintenance can save you up to $1,000 per year in repair costs.”

6. Advanced Troubleshooting for the P0705 Code

When to Suspect More Complex Issues

If you’ve replaced the TRS, checked the wiring, and cleaned the connectors, but the P0705 code persists, it’s time to consider more complex issues.

Intermittent Symptoms: If the P0705 code appears and disappears sporadically, it may indicate an intermittent wiring problem or a failing TCM.
Multiple Codes: If the P0705 code is accompanied by other transmission-related codes, it could point to a more significant issue within the transmission.
No Communication with TCM: If the diagnostic scanner cannot communicate with the TCM, it may indicate a TCM failure or a communication problem within the vehicle’s network.

Testing the Transmission Control Module (TCM)

Visual Inspection: Inspect the TCM for signs of physical damage, such as burnt components or corrosion.
Voltage Testing: Use a multimeter to check for proper voltage at the TCM connectors. Refer to the wiring diagram for your specific Mercedes-Benz model.
Continuity Testing: Check for continuity between the TCM connectors and the TRS connectors.
Professional Testing: Consider having the TCM tested by a qualified Mercedes-Benz technician. They can use specialized equipment to diagnose internal TCM failures.

Checking the CAN Bus System

CAN Bus Overview: The Controller Area Network (CAN) bus is a communication network that allows various electronic control units (ECUs) in the vehicle to communicate with each other.
CAN Bus Issues: Problems with the CAN bus can cause communication errors between the TCM and other ECUs, leading to the P0705 code.
Testing the CAN Bus:
- Use a diagnostic scanner that supports CAN bus testing.
- Check for CAN bus error codes.
- Inspect the CAN bus wiring for damage or corrosion.

Diagnosing Internal Transmission Problems

Fluid Condition: Check the transmission fluid for signs of contamination, such as metal shavings or a burnt odor.
Mechanical Inspection: If you suspect internal transmission problems, it may be necessary to remove the transmission for a thorough inspection.
Professional Diagnosis: Consult a qualified transmission specialist for diagnosis and repair of internal transmission problems.

Using Oscilloscopes for Advanced Diagnostics

Oscilloscope Overview: An oscilloscope is an electronic test instrument that displays electrical signals as waveforms.
TRS Signal Analysis: Use an oscilloscope to analyze the signal from the TRS. This can help identify intermittent signal drops or other anomalies that may not be visible with a multimeter.
CAN Bus Signal Analysis: Use an oscilloscope to analyze the signals on the CAN bus. This can help identify communication errors or signal distortion.

Real-World Examples of Advanced Troubleshooting

Example 1: A 2010 Mercedes-Benz C300 had a P0705 code caused by a failing TCM. Replacing the TCM resolved the issue.
Example 2: A 2013 Mercedes-Benz E350 had a P0705 code caused by a CAN bus communication problem. Repairing the CAN bus wiring fixed the problem.
Example 3: A 2016 Mercedes-Benz GLK250 had a P0705 code due to internal transmission damage. Rebuilding the transmission resolved the issue.

7. The Role of CARDIAGTECH.NET in Resolving Your P0705 Code

How CARDIAGTECH.NET Can Help with Your Mercedes-Benz Repair

Facing a frustrating P0705 code on your Mercedes-Benz? CARDIAGTECH.NET is here to provide expert assistance and top-quality tools to get your vehicle back on the road. We offer a wide range of diagnostic tools, repair equipment, and expert advice to help you tackle any automotive issue.

Benefits of Choosing CARDIAGTECH.NET for Your Automotive Needs

Wide Selection of Diagnostic Tools:
- CARDIAGTECH.NET offers a variety of OBD-II scanners and Mercedes-Benz specific diagnostic tools like the iCarsoft i980 and Autel MaxiSys.
- These tools can help you accurately diagnose the P0705 code and other transmission-related issues.
High-Quality Repair Equipment:
- We provide a range of high-quality repair equipment, including multimeters, socket sets, wrench sets, and torque wrenches.
- Our tools are designed to meet the demands of both professional technicians and DIY enthusiasts.
Expert Advice and Support:
- CARDIAGTECH.NET has a team of experienced technicians who can provide expert advice and support to help you resolve the P0705 code.
- We offer guidance on diagnostic procedures, repair techniques, and parts selection.
Competitive Pricing:
- We offer competitive pricing on all our products, so you can get the tools and equipment you need without breaking the bank.
Fast Shipping:
- CARDIAGTECH.NET provides fast and reliable shipping to ensure you receive your order quickly.

CARDIAGTECH.NET Products Recommended for P0705 Code Repair

OBD-II Scanners:
- Autel MaxiSys MS906BT: Advanced diagnostic scanner with comprehensive coverage for Mercedes-Benz vehicles.
  - Features: Wireless Bluetooth connectivity, advanced coding and programming capabilities, extensive diagnostic functions.
  - Price: $1,200 – $1,500
- iCarsoft MB II: Mercedes-Benz specific diagnostic tool with detailed diagnostic functions.
  - Features: Reads and clears codes, live data streaming, actuation tests, oil reset, and more.
  - Price: $150 – $200
Multimeters:
- Fluke 115 Digital Multimeter: Reliable and accurate multimeter for testing electrical circuits.
  - Features: Measures voltage, current, resistance, continuity, and capacitance.
  - Price: $150 – $200
- Klein Tools MM400 Digital Multimeter: Durable and easy-to-use multimeter for automotive applications.
  - Features: Measures voltage, current, resistance, continuity, and temperature.
  - Price: $30 – $50
Socket Sets:
- Craftsman 230-Piece Mechanic’s Tool Set: Comprehensive socket set with a wide range of sizes and accessories.
  - Features: Includes sockets, wrenches, screwdrivers, and pliers.
  - Price: $200 – $250
- Milwaukee 56-Piece Socket Set: High-quality socket set with durable construction.
  - Features: Includes sockets, ratchets, and extensions.
  - Price: $150 – $200

Success Stories from CARDIAGTECH.NET Customers

John from California:
- “I was struggling with a P0705 code on my Mercedes-Benz C300. I purchased the Autel MaxiSys MS906BT from CARDIAGTECH.NET, and it helped me diagnose the problem quickly. The scanner showed that the TRS was faulty, and after replacing it, the code was gone. Thank you, CARDIAGTECH.NET “
Mike from Texas:
- “I had a P0705 code on my Mercedes-Benz E350, and I couldn’t figure out what was causing it. I contacted CARDIAGTECH.NET, and they provided me with expert advice and recommended the iCarsoft MB II. The tool helped me identify a corroded connector, and after cleaning it, the code disappeared. Great service “
Sarah from Florida:
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Contact CARDIAGTECH.NET Today

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8. Cost Analysis: DIY vs. Professional Repair for the P0705 Code

Cost Breakdown: DIY Repair

If you choose to tackle the P0705 code repair yourself, here’s a breakdown of the potential costs:

Parts:
- Transmission Range Sensor (TRS): $50 – $200
- Wiring Harness Repair Kit: $20 – $50
- Connector Cleaner: $5 – $15
- Dielectric Grease: $5 – $10
- Transmission Fluid (if needed): $10 – $20 per quart
Tools (if you don’t already own them):
- OBD-II Scanner: $30 – $200
- Multimeter: $20 – $100
- Socket Set: $30 – $150
- Wrench Set: $30 – $150
- Screwdriver Set: $15 – $50
Total Estimated Cost: $185 – $935

Cost Breakdown: Professional Repair

If you opt to take your Mercedes-Benz to a professional repair shop, here’s what you can expect to pay:

Labor Costs:
- Diagnostic Fee: $75 – $150
- TRS Replacement: $150 – $300 (2-3 hours of labor at $75 – $100 per hour)
- Wiring Repair: $100 – $400 (depending on the extent of the damage)
Parts Costs:
- Transmission Range Sensor (TRS): $100 – $300 (dealership prices are typically higher)
Total Estimated Cost: $325 – $1150

Factors to Consider When Choosing DIY vs. Professional Repair

Skill Level:
- DIY: Are you comfortable working on cars and using tools?
- Professional: Do you prefer to leave the repair to experienced technicians?
Time Commitment:
- DIY: Do you have the time to diagnose and repair the P0705 code yourself?
- Professional: Are you willing to pay for the convenience of having a professional handle the repair?
Tool Availability:
- DIY: Do you have the necessary tools, or will you need to purchase or rent them?
- Professional: Repair shops have all the necessary tools and equipment.
Diagnostic Complexity:
- DIY: Are you confident in your ability to accurately diagnose the problem?
- Professional: Experienced technicians have the expertise to diagnose complex issues.
Warranty:
- DIY: DIY repairs typically don’t come with a warranty.
- Professional: Reputable repair shops offer warranties on their parts and labor.

When Professional Repair is Recommended

Complex Diagnostic Issues: If you’re unable to diagnose the P0705 code yourself, it’s best to seek professional help.
Transmission Control Module (TCM) Problems: TCM repairs often require specialized programming and diagnostic equipment.
Internal Transmission Problems: If you suspect internal transmission damage, consult a qualified transmission specialist.

Using CARDIAGTECH.NET to Save Money on Professional Repairs

Purchase Diagnostic Tools: Buy an OBD-II scanner from CARDIAGTECH.NET to diagnose the P0705 code yourself before taking your car to a repair shop.
Get a Second Opinion: Use the diagnostic tool to confirm the repair shop’s diagnosis and ensure you’re not being overcharged.
Negotiate Repair Costs: Use the information you’ve gathered to negotiate repair costs with the shop.

Example Cost Comparison Table

Item	DIY Repair Cost	Professional Repair Cost
Transmission Range Sensor	$50 – $200	$100 – $300
OBD-II Scanner	$30 – $200	Included in Labor Fee
Labor Cost	$0	$150 – $400
Diagnostic Fee	$0	$75 – $150
Total Estimated Cost	$80 – $600	$325 – $850

Long-Term Cost Savings of Proper Maintenance

Reduced Repair Costs: Preventative maintenance can help you avoid costly repairs down the road.
Improved Fuel Efficiency: A well-maintained transmission can improve fuel efficiency.
Extended Vehicle Lifespan: Proper care can extend the lifespan of your Mercedes-Benz.