CLA Diesel Engines
from £1,800 to £4,500
Rebuilt units from £2,200 · Common codes: OM654, OM651, N47D20C, OM607
Mercedes Benz ENGINE MARKETPLACE
Mercedes CLA M270/M282/OM651 Engine Solutions - UK Specialists
Get quotes from trusted UK Mercedes CLA engine specialists. Compare reconditioned & used engines for CLA 180 to CLA 45 AMG - M270/M282/OM651 covered. Get a quote before it's too late.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
CLA Petrol Engines
from £1,500 to £4,200
Rebuilt units from £1,800 · Common codes: M270, M260, M282, B48B20
CLA AMG Performance Engines
from £4,500 to £12,000
Rebuilt units from £4,500 · Common codes: M133, M139, M260 DE20 LA
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
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 CLA Replacement Engineto Finding the Best Mercedes Benz CLA 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 CLA Engine Replacement
The table below shows typical UK rebuilt engine replacement costs across Mercedes Benz CLA variants, covering documented failure causes, chassis codes, fuel types, and engine sizes based on current market data.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Mercedes Benz CLA Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Mercedes Benz CLA engines through EngineMarket.
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Variants We Cover
Mercedes Benz CLA Engine ReplacementAll Variants Covered
Mercedes Benz CLA 180d
OM607 1.5L Diesel
Rebuilt Engines: £1,500-£2,400
Mercedes Benz CLA 220 CDI
OM651 2.1L Diesel
Rebuilt Engines: £1,300-£2,900
Mercedes Benz CLA 220
M260 2.0L Petrol
Rebuilt Engines: £2,200-£3,800
Mercedes Benz CLA 250e
M282 1.3L Hybrid
Rebuilt Engines: £4,000-£7,000
CLA
Engine Codes
Mercedes Benz CLA Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Mercedes Benz CLA across all 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 CLA variants.
OM651 - 2.1 Litre Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
CLA 200dCLA 200d Shooting BrakeCLA 220 CDICLA 220 CDI Shooting BrakeCLA 220d (early production)
Avg. rebuilt price
£1,300 - £2,900
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 2.1L
- Power output
- 136-177 hp
- Years fitted
- 2013-2019
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 CLA engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
CLA
Common Problems
Mercedes Benz CLA Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Mercedes Benz CLA, particularly the C117 generation, has established clear engine failure patterns that UK owners need to understand. The N47D20C diesel unit dominates replacement enquiries due to timing chain failures, while M270 petrol variants and M133 AMG engines have their own known weak points. Every rebuilt engine supplied through EngineMarket...
Mercedes Benz CLA Timing Chain Failure - Why N47 Diesel Engines Rattle and Fail
Mercedes Benz CLA Timing Chain Failure
Most affected vehicles
Mercedes Benz CLA 220dCLA 220d Shooting Brake (2015-2019
Mercedes Benz CLA 220d, CLA 220d Shooting Brake (2015-2019, N47D20C)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Chain & Tensioner Replacement | £2,200 - £2,800 | £1,400 - £1,900 | Replace timing chain, tensioner, guides, and sprockets (gearbox removal required). | 60,000-80,000 miles if done before chain stretch. Only viable if engine has not jumped timing. |
| Full Replacement - Rebuilt Engine | £4,500 - £5,500 | £2,800 - £3,800 | Supply & fit fully rebuilt engine with upgraded tensioner and chain components. Bench tested, 12-month warranty. | 100,000+ miles. The definitive fix when chain has slipped or engine has interference damage. |
Our recommendation
On a Mercedes Benz CLA 220d worth £4,000-£7,000, preventative chain replacement is almost always the better value if you catch the rattle early - typically £1,400-£1,900 at a specialist versus £2,200-£2,800 at a dealer. However, once the chain has stretched to the point of timing errors or no-start conditions, replacement is the only safe route. We see too many owners chasing cheap repairs after failure; it rarely ends well.
Compare rebuilt N47D20C engine prices for your Mercedes Benz CLAReplacement Engine Options
Mercedes Benz CLA Engine TypesOptions, Costs & What to Expect
Every engine type for the Mercedes Benz CLA is available through our UK network, with typical price ranges based on your exact variant, engine code and budget.
Mercedes Benz CLA Reconditioned Engines (Recon)£2,200 - £4,500((supply only))
Mercedes Benz CLA Rebuilt Engines£1,800 - £3,800((supply only))
Mercedes Benz CLA Used Engines£900 - £2,200((supply only))
Mercedes Benz CLA Remanufactured Engines£3,000 - £6,500((supply only))
Mercedes Benz CLA Refurbished Engines£1,200 - £2,500((supply only))
Compare Mercedes Benz CLA 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 CLA within hours.
Engine Sizes
Mercedes Benz CLA Engines by SizeFind the Right Displacement for Your Variant
Every factory displacement fitted to the Mercedes Benz CLA across C117 and C118 generations, listed with compatible engine codes, variants, power outputs and common failure notes.
The 1.5-litre OM607 diesel, sourced from Renault, powered entry-level CLA 180d models during the first-generation C117 production run (2013-2019). It prioritised fuel economy over refinement, returning over 70 mpg in real-world driving, but lacks the low-end torque of larger CLA diesel units. This engine is rare in the used market, as most CLA buyers opted for the 2.1-litre OM651.
⚙
Engine Code(s)
OM607 DE15 LA
▣
Compatible Models (UK)
CLA 180d, CLA 180d Shooting Brake
ϟ
Power output
Verified by registration
△
Common Failure Points
Injector seal leakage, turbocharger variable vane seizure, DPF clogging on short journeys
Production Years: C117, 2013-2019
Get quotes for Mercedes Benz CLA 1.5L diesel enginesMercedes Benz CLA Engines Fuel Type
Mercedes Benz CLA Engines by Fuel Type
Choose your Mercedes Benz CLA engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the early C117 CLA 180d diesel to the latest C118 CLA 45 S AMG petrol.
Mercedes Benz CLA Diesel Engines
DieselDiesel powered the majority of first-generation C117 CLA sales in the UK, with the CLA 220d becoming the most searched-for replacement engine due to timing chain failures on the BMW-sourced N47D20C unit.
Common Mercedes Benz CLA Diesel Engine Families
- •OM607 - Renault-sourced 1.5L (CLA 180d), entry-level economy focus
- •OM651 - Mercedes 2.1L (CLA 200d, CLA 220 CDI), pre-facelift workhorse with head gasket weakness
- •N47D20C - BMW 2.0L (CLA 220d 2015-2019), notorious rear timing chain failure
Found In
- •C117 (2013-2019) - OM607, OM651, N47D20C
- •C118 (2019-2025) - OM654
Known For
- •Excellent motorway fuel economy (60+ mpg real-world)
- •N47D20C timing chain tensioner failure between 60k-100k miles
- •EGR cooler cracks causing coolant loss on OM651 and N47 units
1 of 3
Mercedes Benz CLA Diesel Engines
DieselDiesel powered the majority of first-generation C117 CLA sales in the UK, with the CLA 220d becoming the most searched-for replacement engine due to timing chain failures on the BMW-sourced N47D20C unit.
Common Mercedes Benz CLA Diesel Engine Families
- •OM607 - Renault-sourced 1.5L (CLA 180d), entry-level economy focus
- •OM651 - Mercedes 2.1L (CLA 200d, CLA 220 CDI), pre-facelift workhorse with head gasket weakness
- •N47D20C - BMW 2.0L (CLA 220d 2015-2019), notorious rear timing chain failure
Found In
- •C117 (2013-2019) - OM607, OM651, N47D20C
- •C118 (2019-2025) - OM654
Known For
- •Excellent motorway fuel economy (60+ mpg real-world)
- •N47D20C timing chain tensioner failure between 60k-100k miles
- •EGR cooler cracks causing coolant loss on OM651 and N47 units
Mercedes Benz CLA Petrol Engines
PetrolPetrol CLA engines span entry-level 1.3L units to the most powerful four-cylinder production engine in the world - the M139 in CLA 45 S, with replacement demand split between M270 HPFP failures and M260 oil consumption issues.
Common Mercedes Benz CLA Petrol Engine Families
- •M270 - 1.6L/2.0L (CLA 200, CLA 250 C117), high-pressure fuel pump weakness
- •M282 - 1.3L Renault co-developed (CLA 180/200 C118), cylinder deactivation
- •B48B20A - BMW-sourced 2.0L (CLA 200 C118), VANOS solenoid failures
Found In
- •C117 (2013-2019) - M270, M133
- •C118 (2019-2025) - M282, B48B20A, M260, M139
Known For
- •M270 HPFP metal shedding contaminating entire fuel system
- •M260 oil consumption due to piston ring wear (40k-70k miles)
- •M133/M139 extreme power density demands specialist rebuild expertise
Mercedes Benz CLA Plug-in Hybrid (PHEV) Engines
PHEVThe CLA 250e joined the range in 2020 as Mercedes' first compact plug-in hybrid, pairing the M282 1.3L petrol engine with a 75 kW electric motor for up to 40 miles of electric-only driving.
Mercedes Benz CLA PHEV Engine Codes
- •M282 DE14 AL + 75 kW electric motor - combined 218 hp, 15.6 kWh battery
- •Petrol engine and electric motor work together or independently
- •15.6 kWh battery provides up to 40 miles electric-only range
Found In
- •CLA 250e, CLA 250e Shooting Brake (C118, 2020-2025)
Important Notes
- •Hybrid battery degradation expected after 8-10 years - replacement costs are significant
- •Electric coolant pump and charging control unit are known failure points
- •PHEV engine replacement requires hybrid system specialist handling
Not sure which fuel type your Mercedes Benz CLA 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 CLA specialists.
Engine YearsGet quotes for 2013-2015 Mercedes Benz CLA replacement engines →
Mercedes Benz CLA Engines by YearWhat Was Fitted & WhenMercedes Benz CLA Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Mercedes Benz CLA production timeline from 2013 to the present, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓Launch of four-door coupé body style (C117)
- ✓Petrol: M270 1.6L (CLA 180/200) and 2.0L (CLA 250)
- ✓Diesel: OM651 2.1L (CLA 200 CDI, CLA 220 CDI)
- ✓6-speed manual or 7-speed DCT transmission options
▣Main Engines
M270DE16 AL - 1.6L petrol (CLA 180, CLA 200)
M270DE20 AL - 2.0L petrol (CLA 250, CLA 250 4MATIC)
OM651DE22 LA - 2.1L diesel (CLA 200 CDI, CLA 220 CDI)
M133DE20 AL - 2.0L AMG petrol (CLA 45 AMG, from late 2013)
▰Popular Models
- •Mercedes Benz CLA 180
- •Mercedes Benz CLA 200
- •Mercedes Benz CLA 250
- •Mercedes Benz CLA 220 CDI
- •Mercedes Benz CLA 45 AMG
🔧Known For
- ✓CLA 220 CDI with OM651 is the most reliable diesel of the early generation
- ✓M270 petrol engines suffer from timing chain stretch and HPFP failure
- ✓Early CLA 45 AMG (360hp) set records as most powerful production four-cylinder
- ✓Rear timing chain on OM651 makes replacement labour-intensive
Engine Codes Covered:
M270 DE16 ALM270 DE20 ALOM651 DE22 LAM133 DE20 ALNot sure which year your Mercedes Benz CLA 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 Benz CLA specialists.
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