2005 Mercedes-Benz C240

Introduction

The 2005 Mercedes-Benz C240 is a compact luxury sedan with a 2.6-liter V6 engine that produces 168 horsepower and 181 lb-ft of torque. It comes standard with a 5-speed automatic transmission, and a 6-speed manual transmission is available as an option. The C240 is known for its luxurious interior, responsive handling, and high safety ratings. However, like all cars, it has some drawbacks, including limited rear legroom and a lack of modern driver assistance features.

Engine

2.6-liter V6

Timing chain tensioner failure Description/Symptoms: The timing chain tensioner can fail, causing the timing chain to jump or break, which can lead to severe engine damage. Symptoms include a rattling noise from the engine, a loss of power, and a check engine light. Solution: Replace the timing chain tensioner and timing chain. Estimated Cost to Fix: $1,500 - $2,500+ Recalls: None Found

Intake manifold gasket failure Description/Symptoms: The intake manifold gasket can fail, causing a vacuum leak that can lead to rough idling, poor acceleration, and a check engine light. Solution: Replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000+ Recalls: None Found

Transmission

5-speed automatic

Transmission slipping Description/Symptoms: The transmission may slip or hesitate when shifting gears, especially when accelerating or under load. Solution: Replace the transmission clutches or torque converter. Estimated Cost to Fix: $2,000 - $3,000+ Recalls: None Found

6-speed manual

No issues found

Suspension

Strut mount failure Description/Symptoms: The strut mounts can fail, causing a clunking or knocking noise from the suspension, especially over bumps. Solution: Replace the strut mounts. Estimated Cost to Fix: $500 - $1,000+ Recalls: None Found

Electrical

Alternator failure Description/Symptoms: The alternator can fail, causing the battery to discharge and the car to lose power. Symptoms include dim headlights, a flickering or dying dashboard display, and a growling noise from the alternator. Solution: Replace the alternator. Estimated Cost to Fix: $500 - $1,000+ Recalls: None Found

Battery drain Description/Symptoms: The battery can drain over time, even when the car is not running. Symptoms include a weak or dead battery, especially after sitting for a few days. Solution: Diagnose and repair the parasitic drain. Estimated Cost to Fix: $100 - $500+ Recalls: None Found

Exterior

No issues found

Interior

Seat heater failure Description/Symptoms: The seat heater may fail to provide heat, or it may overheat. Solution: Replace the seat heater element or control module. Estimated Cost to Fix: $200 - $500+ Recalls: None Found

Sunroof leaks Description/Symptoms: The sunroof may leak water into the cabin, especially during heavy rain. Solution: Replace the sunroof seals or adjust the sunroof alignment. Estimated Cost to Fix: $500 - $1,000+ Recalls: None Found

Summary

The 2005 Mercedes-Benz C240 has a number of potential issues, including timing chain tensioner failure, transmission slipping, suspension noise, electrical problems, and interior component failures.

While some of these issues are relatively minor and inexpensive to fix, others can be more severe and costly. Potential buyers should be aware of these issues and factor them into their purchase decision.