2018 — 2023
2.0L I4 Turbo (M260)
Petrol
Execute low-speed stop-start driving and crawl up a moderate incline, paying close attention to 1st-to-2nd gear transitions in Comfort mode. | Advice:
Perform a cold start after the vehicle has sat overnight. Listen for any rough idling, hunting RPMs, or ticking noises, and check for an active Check Engine Light (CEL). | Advice:
Interact extensively with the MBUX dual screens. Cycle through menus, adjust ambient lighting, test the 'Hey Mercedes' voice command, and run the reverse camera. | Advice:
Let the car idle until it reaches operating temperature (around 90°C on the digital gauge) and monitor for rapid temperature spikes or immediate cooling fan activation at high speed. | Advice:
Routine Service A: Engine oil and filter change, cabin dust filter replacement, wiper blades, and a full electronic health check. Request a diagnostic scan for any pending DCT or MBUX software updates.
Routine Service B: Comprehensive inspection plus engine air filter, spark plugs, and a vital DCT transmission fluid and filter change to prevent premature clutch wear.
Major Service: Replace engine coolant, inspect the drive belt and tensioner, evaluate auxiliary battery health (powers start-stop system), and check front control arm bushings for wear.
Always scan the vehicle using a Mercedes-compatible OBD2 scanner (like XENTRY) to check for stored, non-illuminated DCT or cylinder head codes.
Verify the use of MB-Approval 229.51 or 229.52 engine oil to protect the gasoline particulate filter (GPF) and mitigate Low-Speed Pre-Ignition (LSPI).
Inspect the panoramic sunroof tracks and clean the front drainage channels to prevent water leaking into the passenger footwells where vital electronic modules reside.
Check the alignment and calibration of the windscreen-mounted driving assistance cameras, especially if the vehicle has had an aftermarket windscreen replacement.
Examine tire wear patterns; the W177 chassis is highly sensitive to wheel alignment, which can rapidly scrub the inner shoulders of expensive 18 or 19-inch run-flat tires.
Estimated repair costs if issues arise
Extremely critical. If the car exhibits misfires or low compression, the cylinder head must be replaced. Check if there is any remaining manufacturer goodwill or extended warranty coverage.
Required strictly every 5-6 years or 60,000km. Skipping this service leads to premature wear of the clutch packs and hydraulic actuator failure.
Common failure point after 5 years. Requires removal of the intake manifold, leading to high labor costs at New Zealand European independent specialists.
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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