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Mercedes-Benz E 63 common problems: what to check before you buy

Credov's researched list of the 4 faults the Mercedes-Benz E 63 is known for (2010–2011), 4 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.

Known problems on the Mercedes-Benz E 63

M156 head bolts corrode

Costly if missed

2006–2009 · M156 · petrol · Engine

What to look for: On a cold start listen for misfire or rough running, and look in the coolant tank for oily scum or bubbles.

Why it matters: A snapped head bolt can end in coolant loss, overheating, a hydro-locked cylinder or a ruined engine, and the fix on many cars means taking the cylinder heads off.

Sources: 1 2

M156 head bolts corrode

Costly if missed

2010–2011 · M156 · petrol · Engine

What to look for: On a cold start listen for misfire or rough running, and look in the coolant tank for oily scum or bubbles.

Why it matters: A snapped head bolt can end in coolant loss, overheating, a hydro-locked cylinder or a ruined engine, and the fix on many cars means taking the cylinder heads off.

Sources: 1 2

M157 timing chain rattle

Costly if missed

2011–2016 · M157 · petrol · Engine

What to look for: Insist on a cold start after the car has sat overnight, and listen at the front of the engine for rattle.

Why it matters: A stretched timing chain upsets cam timing and can jump a tooth; Mercedes issued a documented fix (non-return valves and new tensioners) but not every car received it.

Sources: 1 2

Rear Airmatic leaks

Costly if missed

2010–2016 · petrol · Suspension and steering

What to look for: Check the rear sits level with the front and not lower on one side, and listen for a long-running compressor.

Why it matters: A leak overworks and eventually burns out the compressor, turning a cheaper air-spring repair into a much larger bill.

Sources: 1 2

Got a question about a Mercedes-Benz E 63? Ask Credov: a noise, a warning light, a part or how to fix it.

Also check on every car

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.

Other Mercedes-Benz models

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.