C180 / C200 / C250 CGI 1.8 (M271)
2002–2009 · petrol · 1796cc · 184hp
Engine codes: M271
Reliability, common problems and owner reviews for the Mercedes Benz E-Class W211 C180 / C200 / C250 CGI 1.8 (M271). Check this before you buy used.
The supercharged 1.8 four — adequate but the timing chain and camshaft gears almost always wear by 100,000–150,000 km (sometimes as early as 60,000 km), giving a cold-start rattle that, ignored, leads to timing slip and damage. Treat the chain/cam gears as a near-certain maintenance item.
Same engine, other cars
This is the same physical engine (M271) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
Chain stretches and guides/phasers wear (often after ~100,000 km / 60k miles). Cold-start rattle warns; ignored, the timing slips → damage.
Fix / Workaround: Replace chain + guides + phasers proactively at first rattle.
Repair cost: €700–€1800
Typically appears after: 100,000 km
Supercharged variants add belt/clutch and intake wear points.
Fix / Workaround: Diagnose boost faults; service as needed.
Repair cost: €200–€900
Chain and camshaft gears wear almost universally by 100,000–150,000 km (sometimes 60,000 km) → cold-start rattle, timing slip.
Fix / Workaround: Replace chain + cam gears proactively; act on cold-start rattle.
Repair cost: €700–€1600
Typically appears after: 100,000 km
Supercharger and boost ancillaries wear with age.
Fix / Workaround: Service as needed.
Repair cost: €200–€900
Mileage Thresholds
After 100,000 km: Timing chain stretch risk rises.
Pre-Purchase Checklist
- ☐Cold-start rattle check (timing chain)
- ☐Ask about chain/phaser replacement
- ☐Listen for supercharger noise
- ☐Cold-start rattle check is essential
- ☐Ask about chain/cam-gear replacement
- ☐Near-certain repair item — price accordingly
Frequently asked questions
Is the Mercedes Benz E-Class W211 C180 / C200 / C250 CGI 1.8 (M271) reliable?
Problematic — The supercharged 1.8 four — adequate but the timing chain and camshaft gears almost always wear by 100,000–150,000 km (sometimes as early as 60,000 km), giving a cold-start rattle that, ignored, leads to timing slip and damage. Treat the chain/cam gears as a near-certain maintenance item.
What are the common problems and reviews for the Mercedes Benz E-Class W211 C180 / C200 / C250 CGI 1.8 (M271)?
The most commonly reported problems: Timing chain stretch / cam phaser wear, Supercharger / boost ancillaries, Timing chain / cam gear wear, Supercharger / ancillaries.
Is a used Mercedes Benz E-Class W211 C180 / C200 / C250 CGI 1.8 (M271) worth buying?
Known design issues and recurring faults that were never fully resolved. Buy only with eyes open.