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2011-2016 BMW 335i: N55 upkeep: OFHG, water pump, charge pipe

CHECK IT CLOSE
specific things to inspect and negotiate

What goes wrong

The N55 single-turbo six is far more reliable than the N54 but keeps the BMW maintenance rhythm: oil filter housing gasket leaks (can drip onto the belt, expensive if ingested), electric water pump, plastic charge pipes.

Federal record for the 2014 BMW 335i, pulled from NHTSA when this page was built:
20 owner complaints on file , most-reported: ELECTRICAL SYSTEM (3) · POWER TRAIN (3) · UNKNOWN OR OTHER (3).
5 safety recalls listed.
Complaint volume tracks how many were sold as well as how they held up , read it as a pattern, not a score. Counts change; confirm live at nhtsa.gov or by running the free check below.
Rough cost: $500-$1,500 per item on rotation. Broad estimates , labor rates and parts vary widely by region and shop.

What to do about it

Before you hand over cash: Look for oil weep at the front of the engine near the belt, that leak is the one that can’t wait. Ask which of the usual items are already done.

Whatever you find, a $100-150 pre-purchase inspection by an independent mechanic is the cheapest money you’ll spend on any used car , including this one.

Run the full free check on this 335i →

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General reference information only , not a mechanical inspection, appraisal, or vehicle history report, and not specific to any individual car. Failure patterns describe documented tendencies across many vehicles; any single car may be better or worse. Cost figures are rough estimates , verify locally. The absence of a warning is not a statement that a car is safe or problem-free. Always verify recalls directly with NHTSA and get a pre-purchase inspection. Not affiliated with any manufacturer, dealer, or reporting service. No affiliate links, no commissions, no ads. © Used Car Informer, operated by MCC LLC · v6.6