2004 — 2012
2.0L I4 (M266)
Petrol
Drive up a steep hill at varying throttle levels and check for shuddering, hesitations, or a 'Transmission - Visit Workshop' warning on the dashboard. | Advice:
Perform a cold start with the hood open, listening closely for any metallic rattling or slapping noise from the timing chain area that lasts more than a couple of seconds. | Advice:
Drive over speed bumps or rough NZ chip-seal roads at 30-50 km/h, listening for knocking, clunking, or creaking noises from the front end. | Advice:
Turn the steering wheel lock-to-lock at a standstill and during slow parking maneuvers, checking for notches, heavy spots, or clunking sounds. | Advice:
Minor A-Service: Engine oil and filter change. Inspect cabin dust filter and check front/rear brake pad wear. Ensure tires are rotated and checked for dry rot if the car has been sitting.
Major B-Service: Replace spark plugs, engine air filter, and perform a vital CVT fluid and filter flush. Inspect poly-V belt for cracking. Flush brake fluid.
Comprehensive System Check: Inspect timing chain tension, replace coolant, inspect the water pump and alternator pulley. Overhaul worn front suspension components (bushings and struts) to maintain ride quality and pass WOF.
CVT Fluid Replacements: Ensure the transmission fluid and filter are changed strictly every 50,000 km to 60,000 km using correct Mercedes-spec CVT fluid.
Sandwich Chassis Labor Buffer: Always budget extra for labor; the unique sandwich floor design means even simple jobs (like starter motor or alternator replacement) often require lowering the engine.
Sunroof Rail Maintenance: If fitted with the louvred panoramic sunroof, clean and lubricate the tracks regularly to prevent the mechanism from binding and snapping the cables.
Oil Filter Housing Gaskets: Check the area around the oil filter housing and heat exchanger for oil leaks, as the seals degrade and drip oil onto hot engine components.
Drive Belt and Idler Pulleys: Inspect the serpentine belt, tensioner, and plastic idler pulleys for cracking or play, as a failure will immediately disable the alternator and power steering.
Estimated repair costs if issues arise
Requires removing the valve body and sending the integrated TCM to a specialist for sensor replacement and reprogramming.
The starter motor is buried deep in the sandwich floor. Replacing it requires dropping the engine/subframe assembly, making it a highly labor-intensive job.
Replacing worn front shock absorbers, top mounts, control arm bushes, and sway bar links to pass a WOF.
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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