CLK Diesel Engines
from £1,100 to £3,800
Rebuilt units from £1,100 · Common codes: OM642, OM646, OM612, OM611
Mercedes Benz ENGINE MARKETPLACE
Mercedes CLK M271/M272/OM642 Engine Solutions - UK Specialists
Get quotes from trusted UK Mercedes CLK engine specialists. Compare reconditioned & used engines for CLK 200 to CLK 63 AMG - M271/M272/OM642 covered. Get a quote before it's too late.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
CLK Petrol Engines
from £950 to £3,500
Rebuilt units from £1,200 · Common codes: M272, M112, M271, M111
CLK AMG Engines
from £3,200 to £9,500
Rebuilt units from £3,200 · Common codes: M113 E55, M156, M113 E50
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Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Mercedes Benz CLK Replacement Engineto Finding the Best Mercedes Benz CLK Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
What Are UK Drivers Paying for Mercedes Benz CLK Engine Replacement
The table below shows typical UK rebuilt engine costs across Mercedes Benz CLK variants, covering documented failure causes, chassis generations, engine codes, and fuel types based on current market data.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Mercedes Benz CLK Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Mercedes Benz CLK engines through EngineMarket.
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Variants We Cover
Mercedes Benz CLK Engine ReplacementAll Variants Covered
Mercedes Benz CLK200 Kompressor
M271 1.8L Petrol
Rebuilt Engines: £950-£1,900
Mercedes Benz CLK230 Kompressor
M111 2.3L Petrol
Rebuilt Engines: £1,100-£2,100
Mercedes Benz CLK240
M112 2.6L Petrol
Rebuilt Engines: £1,150-£2,200
Mercedes Benz CLK280
M272 3.0L Petrol
Rebuilt Engines: £1,400-£2,800
Mercedes Benz CLK320
M112 3.2L Petrol
Rebuilt Engines: £1,200-£2,500
Mercedes Benz CLK350
M272 3.5L Petrol
Rebuilt Engines: £1,500-£3,100
Mercedes Benz CLK500
M113 5.0L Petrol
Rebuilt Engines: £1,800-£3,800
Not sure which variant your Mercedes Benz CLK is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
CLK
Engine Codes
Mercedes Benz CLK Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Mercedes Benz CLK across all C208/A208 and C209/A209 generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Diesel Engines
Extracted from detailed diesel engine families across Mercedes Benz CLK variants.
OM642 - 3.0L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
CLK320 CDI SportCLK320 CDI EleganceCLK320 CDI Avantgarde
Avg. rebuilt price
£1,600 - £3,200
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 3.0L
- Power output
- 224 hp
- Years fitted
- 2005-2010
Common failures
- ●Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can‘t find your engine code- Enter your registration number above - we’ll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Mercedes Benz CLK engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
CLK
Common Problems
Mercedes Benz CLK Engine Problems - What It Costs to Fix & When Replacement Makes Sense
Mercedes CLK350 / CLK280 M272 Balance Shaft Failure - The Single Biggest V6 Problem
Mercedes CLK350 / CLK280 M272 Balance Shaft Failure
Most affected vehicles
Mercedes CLK280CLK350 (C209 2005-2009
Mercedes CLK280, CLK350 (C209 2005-2009, M272 E30 & M272 E35 engines)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
The balance shaft idler gear sprocket was manufactured from a soft metal that wears prematurely. As the sprocket teeth wear down, the timing chain becomes slack, causing incorrect camshaft timing and triggering fault codes P0016/P0017/P0018/P0019 .
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Full Timing Chain & Balance Shaft Replacement - Complete repair | £3,500 - £5,000 | £2,000 - £3,500 | Replacement of balance shaft sprocket, timing chain, tensioners, guides. Engine does not need full removal but requires extensive front-end disassembly | 60k-100k miles if upgraded hardened sprockets fitted. Only viable if caught before catastrophic failure |
| Full Replacement - Rebuilt / Reconditioned Engine | £6,000 - £9,000 | £3,000 - £5,500 | Complete replacement engine with upgraded balance shaft components, bench tested, supply & fit, 12-month warranty | 100k+ miles with upgraded components. Best option when engine has already suffered timing-related valve damage |
Our recommendation
On a CLK280 or CLK350 worth £3,000-£6,000, the repair cost can approach the vehicle's value. If the car is in excellent condition and you catch the problem early (P0016/P0017 codes with no drivability issues), specialist repair at £2,000-£2,500 is worthwhile. However, if the timing chain has slipped and caused valve damage - or if the car has other major issues - we recommend replacement with a rebuilt unit that has the upgraded sprockets factory-fitted.
Compare M272 rebuilt engine prices for your Mercedes CLKReplacement Engine Options
Mercedes Benz CLK Engine TypesOptions, Costs & What to Expect
Every engine type is available through our UK network with typical price ranges based on your CLK variant, engine code and budget.
Mercedes Benz CLK Reconditioned Engines (Recon)£1,800 - £4,200((supply only))
Mercedes Benz CLK Rebuilt Engines£1,500 - £3,800((supply only))
Mercedes Benz CLK Used Engines£950 - £2,500((supply only))
Mercedes Benz CLK Remanufactured Engines£2,200 - £5,500((supply only))
Mercedes Benz CLK Refurbished Engines£1,300 - £2,800((supply only))
Compare Mercedes Benz CLK engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Mercedes Benz CLK within hours.
Engine Sizes
Mercedes Benz CLK Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the CLK across C208/A208 (1997-2002) and C209/A209 (2002-2010) generations is listed below, with compatible engine codes, variants, years and common failure notes.
The 2.1-litre four-cylinder turbodiesel (OM646) arrived in 2005 as the entry-level diesel for the facelift C209 CLK220 CDI. It offered economical running costs with 148bhp and 340Nm of torque, making it a popular choice for daily drivers seeking lower fuel bills without sacrificing Mercedes refinement .
⚙
Engine Code(s)
OM646 DE22 LA
▣
Compatible Models (UK)
CLK220 CDI
ϟ
Power output
Verified by registration
△
Common Failure Points
Injector seal leakage, EGR valve carbon build-up at higher mileages
Production Years: C209, 2005-2010
Get quotes for Mercedes Benz CLK 2.1L diesel enginesMercedes Benz CLK Engines Fuel Type
Mercedes Benz CLK Engines by Fuel Type
Choose your Mercedes Benz CLK engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the early C208 diesel to the final C209 AMG V8.
Mercedes Benz CLK Diesel Engines
DieselDiesel power arrived with the C209 generation in 2002 and ran through to 2010, with the OM642 V6 in the CLK320 CDI becoming the most sought-after oil-burner for its effortless torque and motorway refinement.
Common Mercedes Benz CLK Diesel Engine Families
- •OM642 - 3.0 V6 turbodiesel, CLK320 CDI, known for oil cooler seal failures
- •OM646 - 2.1 four-cylinder, CLK220 CDI, reliable but injector seals leak
- •OM612 - 2.7 five-cylinder, CLK270 CDI, cult classic with turbo bearing issues
Found In
- •C209/A209 (2002-2010) - OM612 (2002-2005), OM646 (2005-2010), OM642 (2005-2010)
Known For
- •Exceptional motorway fuel economy - 45-50mpg realistic
- •OM642 oil cooler seal failure requires intake manifold removal
- •High replacement demand on CLK320 CDI due to V6 refinement
Typical Diesel Models
- •CLK220 CDI
- •CLK270 CDI
- •CLK320 CDI
1 of 3
Mercedes Benz CLK Diesel Engines
DieselDiesel power arrived with the C209 generation in 2002 and ran through to 2010, with the OM642 V6 in the CLK320 CDI becoming the most sought-after oil-burner for its effortless torque and motorway refinement.
Common Mercedes Benz CLK Diesel Engine Families
- •OM642 - 3.0 V6 turbodiesel, CLK320 CDI, known for oil cooler seal failures
- •OM646 - 2.1 four-cylinder, CLK220 CDI, reliable but injector seals leak
- •OM612 - 2.7 five-cylinder, CLK270 CDI, cult classic with turbo bearing issues
Found In
- •C209/A209 (2002-2010) - OM612 (2002-2005), OM646 (2005-2010), OM642 (2005-2010)
Known For
- •Exceptional motorway fuel economy - 45-50mpg realistic
- •OM642 oil cooler seal failure requires intake manifold removal
- •High replacement demand on CLK320 CDI due to V6 refinement
Typical Diesel Models
- •CLK220 CDI
- •CLK270 CDI
- •CLK320 CDI
Mercedes Benz CLK Petrol Engines
PetrolThe CLK’s petrol range spans four-cylinder Kompressor units, smooth V6s from the M112 and M272 families, and thunderous V8s in CLK500 and AMG guises - covering everything from economy to 500bhp hero cars.
Common Mercedes Benz CLK Petrol Engine Families
- •M272 - 3.0 and 3.5 V6, CLK280/CLK350, infamous for balance shaft failure
- •M112 - 2.6 and 3.2 V6, CLK240/CLK320, bulletproof pre-facelift units
- •M271 - 1.8 Kompressor, CLK200K, timing chain and camshaft adjuster issues
Found In
- •C208/A208 (1997-2002) - M111 (1.8/2.0/2.3), M112 (3.2), M113 (4.3/5.4)
- •C209/A209 (2002-2010) - M271 (1.8), M112 (2.6/3.2), M272 (3.0/3.5), M113 (5.0/5.4), M156 (6.2)
Known For
- •M272 balance shaft sprocket wear (P0016/P0017) on 2005-2007 engines
- •M271 timing chain rattle on startup - common on CLK200K
- •M112 and M113 generally regarded as Mercedes' most reliable modern engines
Typical Petrol Models
- •CLK200 Kompressor
- •CLK230 Kompressor
- •CLK240
Mercedes Benz CLK Hybrid / Electrified Engines
MHEVImportant Notes
- •No 48-volt MHEV systems on any CLK generation
- •No plug-in hybrid (PHEV) CLK ever produced
- •No electric (BEV) variant exists
Not sure which fuel type your Mercedes Benz CLK has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Mercedes Benz CLK specialists.
Engine YearsGet quotes for 1997-1999 Mercedes CLK replacement engines →
Mercedes Benz CLK Engines by YearWhat Was Fitted & WhenMercedes Benz CLK Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Mercedes CLK’s production timeline from 1997 to 2010, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓CLK launched in coupé form (C208) as E-Class coupé replacement
- ✓Three initial engines: 2.0-litre naturally aspirated four-cylinder, 2.0-litre supercharged, 2.3-litre supercharged
- ✓CLK 320 V6 (3.2-litre, 218bhp) joined within months of launch
- ✓Elegance and Sport trim levels offered
▣Main Engines
M111.945- 2.0 petrol (CLK 200, 136hp)
M111.944- 2.0 supercharged petrol (CLK 200 Kompressor, 192hp)
M111.973- 2.3 supercharged petrol (CLK 230 Kompressor, 193hp)
M112.940- 3.2 V6 petrol (CLK 320, 218hp)
▰Popular Models
- •Mercedes CLK 200
- •Mercedes CLK 200 Kompressor
- •Mercedes CLK 230 Kompressor
- •Mercedes CLK 320
🔧Known For
- ✓Elegant pillar-less coupé styling with distinctive E-Class face
- ✓M111 supercharged engines offer strong torque but supercharger clutches fail
- ✓M112 V6 is one of Mercedes’ most reliable engines of the era
- ✓Convertible (A208) launched June 1998
Engine Codes Covered:
M111.945M111.944M111.973M112.940Not sure which year your Mercedes CLK was built- Enter your registration number and we’ll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK Mercedes CLK specialists.
FAQ