
Mercedes C-Class W202 Engines — The Complete UK Guide
Every engine fitted to the first-generation C-Class — from the M111 four-cylinder petrol to the M104 straight-six and the OM605 five-cylinder diesel that defined Mercedes' compact executive class. Real UK costs, honest reliability data, and the engine-harness issues that plague early cars. Backed by real UK enquiries in 2025 [PATTERN DATA].
Explore W202 EnginesMercedes C-Class W202 Engine Codes — The Complete Database
Every engine fitted to the W202 saloon and S202 estate — including the full M111 petrol range, the M104 straight-six, and the OM60x diesel family.

Overview
Mercedes C-Class W202 — Overview
The W202 is the first-generation Mercedes-Benz C-Class, produced from 1992 to 2000 as the successor to the 190E (W201).
It established the C-Class as Mercedes' compact executive offering, available as a four-door saloon and, from 1995, a five-door estate (S202). The engine range spanned M111 four-cylinder petrol units from 1.8 to 2.3 litres, M104 and M112 six-cylinder petrols, the M113 V8 in AMG guise, plus OM604, OM605 and OM611 diesel units. A mild facelift in 1997 brought revised styling and mechanical updates.
Key Facts
Platform
Mercedes W202 (first generation)
Predecessor
Mercedes-Benz 190E (W201)
Successor
Mercedes-Benz C-Class (W203)
Sibling body styles in this generation
S202 estate (1995–2001)
Market Intelligence
The W202 C-Class generated UK engine enquiries in 2025 [PATTERN DATA], with the M111 petrol fours and OM605 diesel five-cylinders remaining the most commonly discussed among specialists.
Best & Worst Engines

Thin-Data Summary
“Thin-Data Fallback mode — one paragraph: The W202's most dependable engine is the M104 2.8-litre straight-six (C280) — the 193 PS six-cylinder is widely considered the pick of the range for its smooth power delivery and proven durability, though early cars (pre-1997) suffer from biodegradable wiring harness failure. The M111 four-cylinder range is generally robust — the 1.8L C180 and 2.0L C200 are simple, reliable units with minimal electronic complexity. The OM605 five-cylinder diesel (C250 Turbodiesel) is the best diesel option, offering 150 PS with the legendary Mercedes over-engineered build quality. The OM611 CDI (C220 CDI) introduced common-rail technology in 1999 and is a significant step forward in refinement and economy. Avoid early OM604 diesels — they are underpowered and suffer from indirect-injection drawbacks, and avoid any pre-1997 car without documented wiring harness replacement, as the biodegradable looms are a known failure point.”
Who it's for:

Mercedes C-Class W202 — Ownership Economics
The W202 rule
A £2,000–£4,000 recon on a sub-£2,500 W202 sits at 80–160% of the car's value — at that point, scrap value usually wins. Against a well-kept £4,000+ example, the same recon drops to 50–100% — still a serious decision, but one that can make sense if the car is otherwise sound. Value the car first, then the engine. Note that C36 and C43 AMG values are significantly higher and may justify engine replacement where a standard C-Class would not.
Key Takeaways
Which W202 Costs Least To Own?
C180 (M111.920) — simplest engine, cheapest parts, no turbo or supercharger complexity.
Which W202 Costs Most To Own?
C43 AMG (M113.944) — V8 parts premium, specialist labour required.
Which W202 Is Best Value?
C250 Turbodiesel (OM605.912) — 150 PS, bulletproof five-cylinder, excellent economy.
Common Problems

W202 Engine Replacement Costs — By Engine and Condition
Core Variants
Core Variants
Diesel Variants
Scope note: All variants listed are W202 saloon and S202 estate. The C36 AMG (1994–1997) and C43 AMG (1997–2000) are the high-performance models. The C220 CDI (OM611) was introduced in 1999 as the first common-rail diesel in the C-Class.
Market Intelligence
Most Requested E90 Engines (2025)
Most Requested E90 Variants
Average E90 Replacement Cost
Most Common E90 Failures
FAQ

Why UK Mercedes C-Class W202 Owners Trust MercedesEngines.uk
Trusted W202 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real Mercedes owners, as part of the Engine Finders network. We only work with specialists who understand the W202's unique wiring harness and OM60x diesel intricacies.
Compare W202 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit. Whether you need a reconditioned M111 or a used OM605, we show you the real market.
UK Engine Replacement Services for W202
covering every variant from C180 to C43 AMG, with supply-only or full supply & fit available nationwide through our vetted specialist network.
Find the best Mercedes C-Class W202 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.





