Mercedes-Benz E-Class: common faults & what to check

Which Mercedes-Benz E-Class are you looking at?

10 generation variants documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Petrol

6 variants documented

2002–2010W2112002–2010W2112.6 V6 petrolPetrolDocumented issues6 knownSee faults & what to checkPhoto: OSX via Wikimedia Commons, Public domain.

2002–2010W2112002–2010W2113.2 V6 petrolPetrolDocumented issues6 knownSee faults & what to checkPhoto: OSX via Wikimedia Commons, Public domain.

2009–2017W2122009–2017W2122.0 turbo petrolPetrolDocumented issues5 knownSee faults & what to checkPhoto: M 93 via Wikimedia Commons, CC BY-SA 3.0 de.

2009–2017W2122009–2017W2123.5 V6 petrolPetrolDocumented issues6 knownSee faults & what to checkPhoto: M 93 via Wikimedia Commons, CC BY-SA 3.0 de.

2016–nowW2132016–nowW2132.0 turbo petrolPetrolDocumented issues4 knownSee faults & what to checkPhoto: Alexander Migl via Wikimedia Commons, CC BY-SA 4.0.

2016–nowW2132016–nowW2133.0 turbo petrolPetrolDocumented issues3 knownSee faults & what to checkPhoto: Alexander Migl via Wikimedia Commons, CC BY-SA 4.0.

Diesel

3 variants documented

2002–2010W2112002–2010W2113.2 dieselDieselDocumented issues6 knownSee faults & what to checkPhoto: OSX via Wikimedia Commons, Public domain.

2009–2017W2122009–2017W2122.1 dieselDieselDocumented issues9 knownSee faults & what to checkPhoto: M 93 via Wikimedia Commons, CC BY-SA 3.0 de.

2016–nowW2132016–nowW2132.0 dieselDieselDocumented issues4 knownSee faults & what to checkPhoto: Alexander Migl via Wikimedia Commons, CC BY-SA 4.0.

Engine not documented

1 variant documented

1995–2003W2101995–2003W210Engine not documented for this generationEngine not documentedDocumented issues0 knownSee faults & what to checkPhoto: Rudolf Stricker via Wikimedia Commons, Attribution.

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this Mercedes-Benz E-Class

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

The checks worth doing on a Mercedes-Benz E-Class before you hand over any money. Every documented fault is listed below, each with its own page.

• Serious issue

  Cold-start the engine and immediately listen for chain rattle from the front of the engine block.

  See why

  M276 V6 timing chain tensioner & guide rail failure

  The M276 3.0-litre V6 engine suffers from premature hydraulic timing chain tensioner failure and plastic guide rail disintegration. Tensioners lose oil pressure, allowing chain slack that causes rattling on cold start and, if ignored, catastrophic engine failure through jumped timing or guide rail debris entering the oil system. Mercedes issued recall campaigns in multiple markets including Australia. The plastic rails shatter and contaminate the engine oil, accelerating bearing wear. All M276 variants are affected regardless of mileage if tensioners have not been replaced under the recall.

  What you would notice

  • Rattling or clattering noise from engine on cold start lasting 2-10 seconds
  • Check engine light with P0008 or P0016 timing correlation fault codes
  • Engine vibration and rough idle after reaching operating temperature
  • Oil pressure warning light in advanced failure stages
  • Ticking or slapping noise from front of engine at idle

  Typically $4,500–$14,000 to put right.

• Serious issue

  This is the highest priority check on any W211 petrol.

  See why

  W211 M272/M273 V6/V8 Balance Shaft Sprocket Plastic Tooth Failure

  The M272 (3.0/3.5 V6) and M273 (5.0 V8) engines in the W211 E-Class suffer from a widely documented failure of the balance shaft module sprocket. The sprocket uses plastic composite teeth that wear and strip progressively, causing balance shaft desynchronisation from the crankshaft. This results in rough running, timing chain wear, and in advanced cases complete engine destruction. Mercedes faced class action proceedings in Australia over this issue and issued extended warranty coverage. All W211 E-Class petrol models should be considered at risk unless documented repair is verified.

  What you would notice

  • Rough idle that progressively worsens
  • Check engine light with camshaft position or balance shaft correlation codes
  • Rattling from engine at idle or low RPM
  • Loss of power and increased fuel consumption

  Typically $3,500–$9,000 to put right.

• Serious issue

  Start the car cold and listen for chain rattle in the first 30 seconds.

  See why

  M271 1.8T Timing Chain Stretch and Guide Rail Failure

  The M271 1.8-litre turbocharged four-cylinder engine suffers from well-documented premature timing chain stretch. The plastic chain guide rail and tensioner deteriorate, depositing debris into the sump. Chain skip causes immediate engine damage. Failures are most common between 80,000 and 140,000 km and can occur with no warning other than a cold-start rattle. Mercedes issued a technical service bulletin but no formal recall. Independent workshops across NZ and AU report this as one of the most common W212 engine failures.

  What you would notice

  • Rattling noise from engine on cold start, clearing after 30 to 60 seconds
  • Check engine light with camshaft or crankshaft position sensor codes (P0016, P0017)
  • Rough idle or misfires after chain skip
  • Metal debris visible in engine oil on dipstick or at oil drain

  Typically $2,200–$4,500 to put right.

• Serious issue

  Check oil for metallic contamination by draining a small sample and inspecting for particles.

  See why

  OM651 2.1D balance shaft chain failure & engine knock

  The OM651 2.1-litre four-cylinder diesel engine has a well-documented failure of the balance shaft drive chain and its plastic chain guide. The chain stretches and the guide disintegrates, causing severe engine knock, loss of power, and in undetected cases complete engine seizure. The failure is often sudden and catastrophic, with plastic debris from the guide entering the engine oil and accelerating main and big-end bearing wear. Mercedes issued extended warranty coverage and recall campaigns in several markets. Full repair requires engine removal and disassembly, making it one of the most expensive diesel repair events on this platform. Early production examples from 2009-2012 are at highest risk.

  What you would notice

  • Loud knocking or rattling from engine particularly at idle or low revs
  • Sudden loss of power accompanied by engine warning lights
  • Severe vibration and rough running not consistent with normal diesel character
  • Metallic or plastic debris visible on oil dipstick or in drained oil
  • Engine stalls and refuses to restart in catastrophic failure

  Typically $8,000–$22,000 to put right.

• Serious issue

  Turn the ignition on and watch for any SBC/brake warning.

  See why

  Sensotronic (SBC) electro-hydraulic brake failure (W211)

  Pre-facelift W211s (roughly 2002-2006) use Sensotronic Brake Control, an electro-hydraulic brake with a pump/accumulator unit that wears out. When it nears end of life you get a red 'Brake - Visit Workshop' warning and the system counts down its remaining brake actuations before disabling assistance. This is a safety-critical item; the SBC unit is expensive and was the subject of large recalls/extended-warranty campaigns overseas, most now long expired. Mercedes dropped SBC after 2006.

  What you would notice

  • Red 'Brakes - Visit Workshop / Stop Vehicle' message
  • Loud, frequent buzzing from the SBC pump
  • Harsh or grabby brake pedal feel
  • Warning that brake function is limited

  Typically $1,800–$3,800 to put right.

• Serious issue

  Switch on the ignition and watch for any brake, SBC or 'visit workshop' messages.

  See why

  W211 Sensotronic Brake Control (SBC) unit fault, brake recalls PRA 2004/7037 and 2005/7815

  Pre-facelift W211 E-Class cars (all engines, including the E500 5.0 V8) use Sensotronic Brake Control, an electronic brake-by-wire unit made by Bosch. Faults in the SBC unit can drop the car into its hydraulic back-up mode with a dash warning, where the pedal goes hard and stopping distances grow. Mercedes ran two Australian recalls (PRA 2004/7037 and PRA 2005/7815) and later extended SBC warranty cover in many markets, so ask a Mercedes dealer what still applies to the VIN. Out of cover, a replacement SBC hydraulic unit is expensive.

  What you would notice

  • SBC or brake warning message on the dash
  • Hard brake pedal with longer stopping distance
  • Brake hold or hill hold feature not working
  • Buzzing or pump noise from the brake unit when a door is opened

  Typically $0–$5,500 to put right.

What these repairs cost on other cars

Some of the Mercedes-Benz E-Class’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

• Timing Chain Replacement Cost
• DPF Repair and Replacement Cost
• Diesel Injector Replacement Cost

Other Mercedes-Benz models