2002 — 2007
1.8L Kompressor - C180
Petrol
While idling in Park, listen for a distinct 'diesel-like' rattling sound from the front of the engine. | Observation: This may indicate wear in the timing chain or tensioner, which is worth noting for long-term ownership.
During the test drive, gently press the brake pedal while at a low speed. | Observation: Check for any 'spongy' feel or dashboard warning lights, as the Sensotronic Brake Control system can be complex to service.
Turn the steering wheel from full lock to full lock while stationary. | Observation: Listen for any whining noises from the power steering pump, which can occur as these components age.
Operate every electrical button inside the cabin, specifically the windows and seat adjustments. | Observation: Electronics in this generation can sometimes be sensitive to moisture, so ensuring full functionality helps build confidence.
Usually the time to check the condition of the suspension bushings and engine mounts.
A common point to review the transmission fluid and the health of the supercharger (Kompressor) oil.
A stage where cooling system components like radiators and hoses are typically reviewed to ensure long-term reliability.
Prioritise a full engine oil and filter service every 10,000km to keep the Kompressor system happy.
Ensure the coolant is fresh and the radiator remains free of debris to manage engine temperatures efficiently.
Regularly clean out the plenum chamber and drain holes to prevent water from reaching the electronics.
Keep the battery in good health, as these cars are quite sensitive to voltage fluctuations.
Inspect the tyres for uneven wear, as correct wheel alignment is key to that smooth Mercedes ride.
Estimated repair costs if issues arise
If this component needs attention in the future, it is a significant job that ensures the engine stays in time; think of it as long-term insurance for the motor.
Depending on the car's history on NZ roads, you might eventually need to budget for a refresh of the front control arms to maintain that signature handling.
While often overlooked, keeping the transmission fluid fresh is a wise move for longevity; it involves a drain, fill, and a new filter kit.
Noticed something inaccurate or missing?Suggest an edit→
Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer