2011 — 2016
5.5L (M157) Biturbo V8 - Luxury Performance
Petrol
Check this by inspecting the cold start sound for any rattling from the timing chain area; if you hear a brief metallic clatter, it is worth discussing with a specialist as the timing chain tensioners can wear over time.
While driving at low speeds, observe the transmission for any jerky engagement or hesitation; the MCT multi-clutch gearbox is a complex unit, and smooth operation is key to longevity.
Perform a visual inspection of the front air suspension struts while the car is parked for a few days to ensure it isn't sagging, as the Airmatic system can develop micro-leaks in older vehicles.
Check this by monitoring the engine temperature under load; the M157 engine runs quite hot, and ensuring the cooling system components are functioning correctly is a vital part of owning this performance machine.
Consider a full transmission fluid and filter flush to keep the MCT gearbox shifting crisply.
An ideal time to assess the cooling system, including the water pump and thermostat, which are common service items at this interval.
Inspect the condition of the air suspension components and the auxiliary drive belt system.
Ensure the engine oil is changed every 7,500km to keep those twin turbos happy.
Keep a close eye on the intercooler fluid levels to maintain consistent intake temperatures.
Verify that the software for the engine and transmission is up to date, as minor revisions can improve driveability.
Use only high-quality 98 octane fuel to ensure the M157 engine performs as intended without knock.
Rotate your tires regularly, as the torque from this V8 can be quite enthusiastic with the rear rubber.
Estimated repair costs if issues arise
If this component needs attention in the future, the estimated cost in NZ is reflective of the complex electronic damping integration. Depending on the car's history, you might eventually need to budget for one or two corners to be refreshed.
The MCT gearbox is a marvel of engineering, but if the shifting becomes erratic, a full service or valve body clean is the standard path forward. It is wise to have a specialist inspect the solenoids if you notice any unusual behavior.
In cars of this age, it is common to consider that the seals around the turbo cooling system may start to seep. Addressing these proactively prevents coolant loss and keeps your engine bay tidy.
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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