Diagnostic guide
What the problem can involve
IMS bearing concerns on certain earlier water-cooled flat-six applications.
Symptoms owners may notice
noise, oil contamination indicators or ownership concerns based on model/engine history.
Important: Not every Porsche uses the same IMS design or carries the same risk. Correct engine identification matters before recommendations are made.
How we approach diagnosis
We start by confirming the symptom and vehicle details. Depending on the fault, the next step can include scan data, road testing, pressure testing, electrical measurement, smoke testing, mechanical inspection or fluid assessment. The aim is to separate the cause from the symptom before parts are ordered.
What happens after diagnosis
Once the fault is confirmed, we explain the repair path, any related maintenance items and what should be rechecked after the repair.