Mercedes-Benz GLS X164 350
Model overview
A model overview is not available for this generation yet.
Engine overview · 3.0L 6-cyl DIESEL
A capable 3.0-litre V6 diesel for the X164 GLS, with variant-specific emissions equipment and potentially costly repairs if oil sealing, intake or diesel after-treatment maintenance has been neglected.
Pros
- Refined six-cylinder diesel character
- Well suited to long-distance driving
Cons
- Labour-intensive engine-bay repairs
- Short trips can burden emissions equipment
- Different years need careful specification matching
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Oil cooler seal leakageMedium
- Intake swirl-flap, EGR and carbon foulingMedium
- Diesel particulate and emissions-system loadingHigh
- Injector seal leakageMedium
Maintenance
Follow VIN-specific Mercedes-Benz servicing, use the correct low-ash oil where a particulate filter is fitted, and avoid relying exclusively on short journeys.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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