Other Symptom Guide
Burning Oil Smell from Engine: Diagnosis Guide for Luxury Cars
Why does your luxury car smell like burning oil? From BMW valve cover gaskets to Porsche RMS failures, diagnose the smell before a catastrophic fire or engin...
Symptom Guide
Found 7 articles
Other Symptom Guide
Engine Knocking Noise: Complete Diagnosis Guide for Luxury Cars
Engine knocking in your BMW, Mercedes, or Audi? Diagnose rod bearing wear, carbon knock, and piston slap - th exact repair costs for each failure.
Other Symptom Guide
Engine Knocking in Luxury Cars: When to Worry & What It Costs
Diagnose an engine knocking or ticking sound on cold start in a luxury car. From BMW S65/S85 rod bearings to Porsche bore scoring, learn the symptoms and risks.
Other Symptom Guide
Rough Idle in Luxury Cars: Diagnosis, Common Causes & Repair Guide
A rough idle on a modern luxury car is never just 'bad gas.' Learn the difference between failing engine mounts, misfires, and catastrophic vacuum leaks on A...
Other Symptom Guide
Rough Idle in High-Performance Engines: When to Worry & What to Check
BMW, Mercedes, or Audi rough idle? Diagnose carbon buildup, vacuum leaks, injector failure, and ignition coils - th repair costs for each cause.
Other Symptom Guide
Turbo Whistle Sound: What It Means & When to Worry
Turbo whistling or whining noise? Learn to distinguish normal turbo spool from failing bearing sounds - th brand-specific causes and repair costs.
Other Symptom Guide
Turbo Whistle Sound Explained: Normal vs Warning Sounds in Performance Cars
Why does your twin-turbo luxury engine sound like a police siren? Learn the difference between a normal spooling sound and a $10,000 catastrophic turbo failure.
