2007 Mercedes-Benz CL500

The 2007 Mercedes-Benz CL500 is a luxurious and powerful coupe known for its comfortable ride and advanced technology. The CL500 comes standard with a 5.5-liter V8 engine producing 382 horsepower and 391 lb-ft of torque. Other engine options include a 6.0L V12 engine in the CL600, and an AMG tuned 6.2L V8 in the CL63 AMG. All engines came with a 7-speed automatic transmission. Owners often praise the car’s stylish design, smooth ride quality (especially with the Active Body Control suspension), and opulent interior. Common complaints revolve around the high maintenance costs associated with complex systems like the ABC suspension, electrical components, and the general price of replacement parts.

Engine

5.5L M273 V8

• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Rough idling, check engine light, reduced engine performance, error codes related to camshaft position.
  • Solution: Replace the faulty camshaft adjuster solenoid.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve cover, burning oil smell, low oil level.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found

6.0L M275 V12 (CL600)

• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough running engine, check engine light. V12 engines have multiple ignition coils, so symptoms may be isolated to one side of the engine.
  • Solution: Replace the faulty ignition coil(s).
  • Estimated Cost to Fix: $300-$1000+ (depending on how many coils need to be replaced)
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Reduced power, whistling noises, smoke from exhaust. Can stem from failing seals or wastegate problems.
  • Solution: Repair or replace the affected turbocharger.
  • Estimated Cost to Fix: $2000 - $5000+
  • Recalls: None Found

6.2L M156 V8 (CL63 AMG)

• Camshaft Wear
  • Description/Symptoms: Ticking noise from the engine, reduced performance, check engine light, and potentially significant engine damage if left unaddressed.
  • Solution: Replace the worn camshafts and possibly lifters/followers.
  • Estimated Cost to Fix: $3000 - $7000+
  • Recalls: None Found
• Head Bolt Failure
  • Description/Symptoms: Coolant and oil mixing, loss of coolant, overheating.
  • Solution: Replace the head bolts.
  • Estimated Cost to Fix: $4000 - $8000+
  • Recalls: None Found

Transmission

7G-Tronic 722.9 7-Speed Automatic

• Valve Body Issues
  • Description/Symptoms: Harsh shifting, delayed engagement, slipping between gears, getting stuck in gear.
  • Solution: Replace or rebuild the valve body.
  • Estimated Cost to Fix: $1500 - $3500+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering, stalling, transmission slipping, unusual noises.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1000 - $3000+
  • Recalls: None Found

Suspension

• Active Body Control (ABC) System Leaks/Failure
  • Description/Symptoms: Car sagging on one or more corners, error messages related to ABC, hydraulic fluid leaks, stiff or bouncy ride.
  • Solution: Repair or replace leaking hydraulic lines, struts, or the ABC pump. Flushing the system and replacing the filter can sometimes resolve minor issues.
  • Estimated Cost to Fix: $500 - $5000+ (depending on the severity and components affected)
  • Recalls: None Found
• Air Suspension Compressor Failure (if equipped)
  • Description/Symptoms: Car not raising or lowering properly, air suspension malfunction warnings, loud compressor noises.
  • Solution: Replace the air suspension compressor.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, unable to start the car, steering wheel lock issues.
  • Solution: Replace or repair the EIS module. Requires programming.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found
• SAM (Signal Acquisition Module) Issues
  • Description/Symptoms: Malfunctions with various electrical components (lights, wipers, windows, etc.), error messages.
  • Solution: Diagnose the specific SAM module and replace or reprogram it.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Dead battery, requiring frequent jump starts.
  • Solution: Diagnose and repair the source of the parasitic drain. This can be a faulty module, relay, or wiring issue.
  • Estimated Cost to Fix: $200 - $1000+ (depending on the complexity of the issue)
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, unusual noises, water leaks.
  • Solution: Repair or replace the sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $300 - $1500+
  • Recalls: None Found

Interior

• Seat Motor Failure
  • Description/Symptoms: Seat not moving in one or more directions.
  • Solution: Replace the faulty seat motor.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Command System Malfunctions
  • Description/Symptoms: Screen freezing, navigation issues, audio problems.
  • Solution: Diagnose and repair or replace the COMAND unit.
  • Estimated Cost to Fix: $500 - $2000+
  • Recalls: None Found

Summary The 2007 Mercedes-Benz CL500, while offering luxury and performance, can be prone to various issues, particularly with its complex systems like the ABC suspension and electronics. Engine and transmission issues vary depending on the specific engine option. Repairs can range from relatively minor (e.g., replacing a solenoid) to very expensive (e.g., replacing an ABC pump or turbocharger). The potential for high maintenance costs should be carefully considered when purchasing this vehicle.