Car Model Guide/ Mercedes-Benz/ E-Class/ S211/ E 200 Kompressor M271-KOMP/ Issues

E 200 Kompressor M271-KOMP, known issues

S211 · 2003–2009 · R4 High risk

Recorded issues3

Walk-away2

Over €1,0003

Checkable at viewing1/3

Likely spend€6,750

Likely spend is the mid cost of every issue rated common or universal, added together, what an unmaintained example owes over the next few years, not a prediction for any one car. Worst case if everything here failed at once is €9,500, which isn't a realistic scenario but is a useful ceiling.

All issues, by system

Engine

Balance shaft gear wearM271 1.8 Kompressor€2,500–€4,500

Check-engine light with camshaft/crankshaft correlation codes, rough running, and eventually a car that won't start. The balance-shaft gear was manufactured too soft on a range of early engines and wears against the crank gear until timing is lost. Mercedes revised the part.

Check: Scan for correlation codes before anything else. A clear scan today doesn't clear the car, but codes present are decisive. Ask for a balance-shaft repair receipt with the revised part number; engine number ranges are published and a specialist can check yours.

Later parts: Revised gear; not present on the M271 EVO from the 2011 facelift

EnginecommonPartly detectablewalk away without proofevidence: documented100–200k km

Brakes

Sensotronic brake unit failure (pre-facelift)E-Class platform€1,200–€2,500

A red brake warning, a message telling you to stop, a much harder pedal, and in some cases the car limiting itself. The electro-hydraulic Sensotronic unit has a pump and accumulator with a counted service life, and once the counter expires the system demands replacement. Mercedes dropped the system at the 2006 facelift, so later cars aren't affected.

Check: Establish the build date first, since facelift cars don't have it. On an earlier car, have the SBC counter read on a diagnostic and treat a high count as a bill you're about to inherit.

Later parts: Conventional hydraulic brakes from the 2006 facelift

BrakescommonPartly detectablewalk away without proofevidence: manufacturer100–200k km

Body & corrosion

Corrosion at the arches, boot and tailgateE-Class platform€300–€2,500

Bubbling paint at the rear arches and around the boot lid or tailgate, and rust in the spare wheel well. This generation was built during Mercedes' worst period for corrosion protection, and cars in salted climates suffer. Later cars are better than early ones, but the body is worth more attention here than on a W212.

Check: Look along the rear arches and the boot or tailgate seams in good light, lift the boot floor, and check underneath for previous repair.

Body & corrosioncommonDetectable at viewingevidence: documented

How to read this

Every issue is authored once against the part that actually carries it: the engine, the gearbox, the chassis or a shared component, and inherited by every variant that has that part. The badge next to each issue says where it comes from, so you can tell an M271-KOMP problem from an E9x problem.

Evidence tiers. Manufacturer means a recall, technical bulletin or revised part number. Documented means workshop data or multiple independent sources. Reported means owner consensus with no hard confirmation, and never sets a risk level on its own.

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