Reliability Summary

Best engine M274 — 69/100 ACCEPTABLE
Worst engine M271 EVO (CGI turbo) — 58/100 CAUTION
Average reliability 64/100

Engine Comparison

Engine Reliability Score Verdict Known Issues
M274
2.0L Turbo I4
69/100 ACCEPTABLE Camshaft weld failure — camshaft can break (2015 builds, recall) +5
M271 EVO (CGI turbo)
1.8L CGI Turbo I4
58/100 CAUTION Camshaft adjuster and tensioner wear — timing drift, chain can jump +2

Engines in this model

Known Issues Across All Engines

Issue Engine Severity Onset
Camshaft weld failure — camshaft can break (2015 builds, recall) M274 high —
Camshaft-adjuster magnet valves leak oil into the wiring harness M274 moderate —
Timing chain stretch / tensioner wear M274 moderate 90,000 km – 140,000 km
Thermostat failure M274 moderate —
Cold knock from the crank assembly — piston wrist-pin tolerance (built before April 2015) M274 minor —
NOx sensor failure M274 minor —
Camshaft adjuster and tensioner wear — timing drift, chain can jump M271 EVO (CGI turbo) critical 50,000 km – 160,000 km
Intake-valve carbon build-up (direct injection) M271 EVO (CGI turbo) moderate 80,000 km – 130,000 km
Camshaft sensor magnets leak oil into wiring harness and ECU M271 EVO (CGI turbo) moderate —

FAQ

Is the Mercedes-Benz E 200 reliable?

The Mercedes-Benz E 200 has 2 engine options with reliability scores ranging from 58/100 (CAUTION) to 69/100 (ACCEPTABLE). Average reliability: 64/100.

Which Mercedes-Benz E 200 engine is most reliable?

The M274 is the most reliable engine in the Mercedes-Benz E 200, scoring 69/100 (ACCEPTABLE).

What problems does the Mercedes-Benz E 200 have?

Across all engine variants, the Mercedes-Benz E 200 has 9 known issues. The most common are related to Camshaft weld failure — camshaft can break (2015 builds, recall), Camshaft-adjuster magnet valves leak oil into the wiring harness, Timing chain stretch / tensioner wear.