2017 — 2020
3.0L S55 Twin-Turbo - CS (Club Sport) version
Petrol
During low-speed maneuvers, listen for any light clicking or knocking from the front suspension, as the carbon strut brace and adjustable top mounts can sometimes transmit road noise or develop minor play in high-mileage examples.
While driving in 'Efficient' mode, observe the throttle response for any inconsistent surging, which can occasionally hint at minor vacuum leaks or sensor calibration needs common in S55 forced-induction setups.
Check this by shifting through the DCT gearbox manually under light load; ensure the changes are crisp and linear, as a smooth engagement is a good indicator of clutch pack health.
Before starting the engine cold, physically check the intercooler coolant reservoir levels to ensure they are consistent, as it is a prudent check for any minor cooling system pressures over time.
Consider a comprehensive inspection of the charge-air cooling system and a fresh differential fluid change.
Typically the time to evaluate the condition of the spark plugs and coil packs to ensure the S55 continues to perform at its peak.
A sensible interval to have a specialist assess the general suspension bushes and mount integrity for any signs of fatigue.
Prioritize high-quality engine oil changes at 10,000km intervals or annually, whichever comes first.
Keep a close eye on the intercooler coolant level as part of your regular pre-drive checks.
Ensure the DCT transmission software is updated by a specialist if you notice any unusual jerkiness in stop-start traffic.
Regularly clean and treat the Alcantara steering wheel and interior trim to maintain the CS-specific aesthetic.
Invest in a pre-purchase inspection from an independent BMW specialist familiar with M-Division vehicles.
Estimated repair costs if issues arise
While many CS models are considered more refined, it's common to consider preventative reinforcement for the crank hub assembly as part of your long-term ownership plan. If this component needs attention in the future, the estimated cost in NZ is to cover parts and specialist labour.
If your CS is equipped with Carbon Ceramic Brakes, these offer incredible performance but are significant consumables. Depending on the car's history, you might eventually need to budget for disc and pad replacements, which are premium components.
The CS suspension is bespoke and highly tuned. In cars of this age, it is worth keeping a rainy-day fund for the eventual replacement of an electronic damper if it loses its damping efficiency.
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