Credov's researched list of the 3 faults the BMW 335i is known for (2006–2013), 3 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: On the test drive watch the temperature reading and the dash for a coolant or overheating warning.
Why it matters: The pump fails with no warning and driving on can warp the head; typically NZ$1,200-$2,800.
What to look for: On the test drive accelerate hard in 3rd and 4th watching for a power warning, and note long cold-start cranking.
Why it matters: A failing pump can shut the engine down while driving, and pumps have failed more than once on the same car; typically NZ$1,500-$3,000.
What to look for: Accelerate to about 3,500 rpm, lift off, and listen for a metallic rattle from the right side of the engine.
Why it matters: Unmanaged boost and a failed wastegate usually means two new turbos, engine out on some cars; typically NZ$5,000-$12,000.
Got a question about a BMW 335i? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.