Enthusiasts on Reddit often recommend the 3.0L Supercharged V6 (S model) for its performance and relative simplicity compared to newer units.
A full record is non-negotiable. Look for proof of recent oil changes and coolant system checks to avoid the high repair costs associated with luxury sedans.
The P250 and P300 Ingenium petrol engines (introduced around 2017) are more refined and widely available.
Check for coolant leaks (water pump) and ensure the electronic parking brake engages and releases smoothly. 3. Buying Tips