A Class Diesel Engines
from £1,400 to £4,800
Rebuilt units from £1,400 · Common codes: OM651, OM654, OM607, OM611
Mercedes-Benz ENGINE MARKETPLACE
Mercedes A Class M282/OM607/M260 Engine Solutions - UK Specialists
Get quotes from trusted UK Mercedes A Class engine specialists. Compare reconditioned & used engines for A180 to A45 S AMG - M282/OM607/M260 covered. Get a quote before it's too late.
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12-Month Warranty
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100+ Suppliers
A Class Petrol Engines
from £1,200 to £4,200
Rebuilt units from £1,200 · Common codes: M270, M264, M282, M274
A Class AMG Performance Engines
from £4,500 to £12,000
Rebuilt units from £4,500 · Common codes: M133, M139, M260
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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 A Class Replacement Engineto Finding the Best Mercedes Benz A Class 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 A Class Engine Replacement
The table below shows typical UK rebuilt engine costs across Mercedes-Benz A Class 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
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Variants We Cover
Mercedes-Benz A Class Engine ReplacementAll Variants Covered
Mercedes-Benz A Class A220d
OM651 2.1L Diesel
Rebuilt Engines: £2,800-£5,000
Mercedes-Benz A Class A160
M266 1.5L Petrol
Rebuilt Engines: £1,400-£2,600
Mercedes-Benz A Class A180
M270 1.6L Turbo
Rebuilt Engines: £1,500-£2,800
Mercedes-Benz A Class A200
M270 1.6L Turbo
Rebuilt Engines: £1,600-£3,200
Mercedes-Benz A Class A250e Plug-In Hybrid
M282 1.3L Petrol
Rebuilt Engines: £3,000-£5,500
Mercedes-Benz A Class A140
M166 1.4L Petrol
Rebuilt Engines: £1,200-£2,200
A Class
Engine Codes
Mercedes-Benz A Class Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Mercedes-Benz A Class 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 A Class variants.
OM668.940 - 1.7L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
A160 CDI (W168)A170 CDI (W168)
Avg. rebuilt price
£1,800 - £2,800
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 1.7L
- Power output
- 75-95 hp
- Years fitted
- 1997-2008
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?
A Class
Common Problems
Mercedes-Benz A Class Engine Problems - What It Costs to Fix & When Replacement Makes Sense
Mercedes-Benz A Class Timing Chain Failure - Why M270 & OM651 Petrol and Diesel Engines Fail
Mercedes-Benz A Class Timing Chain Failure
Most affected vehicles
A180A200
A180, A200, A250 (W176, M270 petrol); A180 CDI, A200 CDI, A220 CDI (W176, OM651 diesel); 2012-2018
Failure mileage range
80,000 - 150,000 miles
Typical failure window
Root cause
The M270 petrol and OM651 diesel engines use a single timing chain located at the rear of the engine near the gearbox. The plastic chain tensioner guides wear prematurely and the hydraulic tensioner can lose pressure, allowing chain stretch and camshaft timing drift .
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Preventative Timing Chain & Tensioner Replacement | £2,200 - £3,200 | £1,400 - £2,200 | Replacement of timing chain, tensioner, guides, sprockets, and camshaft adjuster bolts | Best done at first rattle (cold start). Prevents catastrophic failure. |
| Full Replacement - Rebuilt / Reconditioned Engine | £5,000 - £8,000 | £2,500 - £5,500 | Complete supply & fit of a rebuilt engine with upgraded timing components | Required if chain has jumped (bent valves). Includes 12-month warranty. |
Our recommendation
If you hear a rattling noise from the rear of the engine on cold starts - especially between 80,000 and 120,000 miles - act immediately. A preventative chain replacement at a specialist saves thousands compared to waiting for failure. Once the chain jumps, piston-to-valve contact is almost certain and engine replacement becomes the only viable option.
Compare rebuilt M270 petrol or OM651 diesel engine prices for your Mercedes-Benz A ClassReplacement Engine Options
Mercedes-Benz A Class Engine TypesOptions, Costs & What to Expect
Every engine type is available through our UK network with typical price ranges based on your A Class variant, engine code and budget.
Mercedes-Benz A Class Reconditioned Engines (Recon)£2,200 - £5,500((supply only))
Mercedes-Benz A Class Rebuilt Engines£1,800 - £4,800((supply only))
Mercedes-Benz A Class Used Engines£800 - £2,500((supply only))
Mercedes-Benz A Class Remanufactured Engines£3,000 - £7,000((supply only))
Mercedes-Benz A Class Refurbished Engines£1,200 - £3,200((supply only))
Compare Mercedes Benz A Class 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 A Class within hours.
Engine Sizes
Mercedes-Benz A Class Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Mercedes-Benz A Class across all generations is listed below, with compatible engine codes, production years and common failure notes to help you identify your exact engine.
The 1.5-litre diesel entered the A-Class range with the W176 generation (2012-2018) as the entry-level A180d, using a Renault-sourced OM607 engine. This unit prioritised fuel economy over performance, returning up to 68.9mpg and CO2 emissions as low as 98g/km, making it popular for company car drivers. It was replaced in the W177 by an updated version of the same displacement.
⚙
Engine Code(s)
OM607 (Renault K9K)
▣
Compatible Models (UK)
A180d (W176, 2012-2018); A180d
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing belt replacement required every 80,000-100,000 miles; injector seal leaks; turbo actuator failure
Production Years: W177, 2018-present
Get quotes for Mercedes-Benz A Class 1.5L diesel enginesMercedes-Benz A Class Engines Fuel Type
Mercedes-Benz A Class Engines by Fuel Type
Choose your Mercedes-Benz A Class engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the early W168 A140 to the latest W177 A45 S AMG.
Mercedes-Benz A Class Diesel Engines
DieselDiesel power spanned four A-Class generations from 1997 to the present day, with OM600, OM640, OM607, OM651 and OM654 families driving replacement demand - particularly on W176 and W177 models.
Common Mercedes-Benz A Class Diesel Engine Families
- •OM668 - W168 A160 CDI (1.7L), first common-rail diesel in an A-Class
- •OM640 - W169 A160/A180/A200 CDI (2.0L), timing chain tensioner weakness
- •OM607 - W176/W177 A180d (1.5L), Renault-sourced, timing belt service critical
Found In
- •W168 (1997-2004) - OM668
- •W169 (2004-2012) - OM640
- •W176 (2012-2018) - OM607, OM651
Known For
- •Excellent motorway economy - many variants exceed 60mpg
- •OM651 EGR cooler failure causing coolant loss (60k-100k miles)
- •OM607 timing belt requires replacement every 80k-100k miles
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Mercedes-Benz A Class Diesel Engines
DieselDiesel power spanned four A-Class generations from 1997 to the present day, with OM600, OM640, OM607, OM651 and OM654 families driving replacement demand - particularly on W176 and W177 models.
Common Mercedes-Benz A Class Diesel Engine Families
- •OM668 - W168 A160 CDI (1.7L), first common-rail diesel in an A-Class
- •OM640 - W169 A160/A180/A200 CDI (2.0L), timing chain tensioner weakness
- •OM607 - W176/W177 A180d (1.5L), Renault-sourced, timing belt service critical
Found In
- •W168 (1997-2004) - OM668
- •W169 (2004-2012) - OM640
- •W176 (2012-2018) - OM607, OM651
Known For
- •Excellent motorway economy - many variants exceed 60mpg
- •OM651 EGR cooler failure causing coolant loss (60k-100k miles)
- •OM607 timing belt requires replacement every 80k-100k miles
Mercedes-Benz A Class Petrol Engines
PetrolPetrol engines have evolved from simple naturally aspirated units (M166, M266) through turbocharged M270/M274 families to the high-output M260 and AMG M133/M139 monsters - spanning W168 to W177 generations.
Common Mercedes-Benz A Class Petrol Engine Families
- •M166 - W168 A140/A160/A190/A210 Evolution (1.4L-2.1L), head gasket failure risk
- •M266 - W169 A150/A160/A170/A200/A200 Turbo (1.5L-2.0L), oil sludge vulnerability
- •M270 - W176 A180/A200/A250 (1.6L-2.0L), timing chain tensioner failure
Found In
- •W168 (1997-2004) - M166
- •W169 (2004-2012) - M266
- •W176 (2012-2018) - M270, M274, M133
Known For
- •M270 timing chain tensioner rattle on cold start (80k-150k miles)
- •M264 HPFP recall (24V-112) affecting early W177 EQ Boost models
- •AMG M133/M139 require specialist rebuilders - not for general garages
Mercedes-Benz A Class Mild Hybrid (MHEV) Engines
MHEVThe M264 EQ Boost engine introduced 48V mild hybrid technology to the W177 A-Class (2018-2021), adding electric assistance without external charging.
Mercedes-Benz A Class MHEV Engine Codes
- •M264 (1.5L) - A200 EQ Boost, 48V integrated starter-generator
- •M264 (2.0L) - A220 EQ Boost, belt-driven starter-generator
- •48V starter-generator provides 14hp electric boost under acceleration
Found In
- •A200 EQ Boost, A220 EQ Boost (W177, 2018-2021)
Important Notes
- •48V battery failure is expensive - quoted £1,500-£2,500 from main dealers
- •HPFP recall (24V-112) applies to many M264 units
- •Replacement availability is more limited than standard petrol engines
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Not sure which fuel type your Mercedes-Benz A Class 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 A Class specialists.
Engine YearsGet quotes for 1997-2004 Mercedes-Benz A Class replacement engines →
Mercedes-Benz A Class Engines by YearWhat Was Fitted & WhenMercedes-Benz A Class Engines by Year - What Was Fitted & When
Every major engine change across the A-Class production timeline from 1997 to 2026, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓Launch of the compact MPV-style A-Class (W168)
- ✓1998: OM668 common-rail diesel added to range
- ✓2001: Facelift with revised suspension and standard ESP (post-moose test)
- ✓2002: A210 Evolution flagship with 2.1L M166
▣Main Engines
M166E14 - 1.4L petrol (A140)
M166E16 - 1.6L petrol (A160)
M166E19 - 1.9L petrol (A190)
M166E21 - 2.1L petrol (A210 Evolution)
OM668DE17 - 1.7L diesel (A160 CDI / A170 CDI)
▰Popular Models
- •Mercedes-Benz A140
- •Mercedes-Benz A160
- •Mercedes-Benz A190
- •Mercedes-Benz A210 Evolution
- •Mercedes-Benz A160 CDI / A170 CDI
🔧Known For
- ✓Revolutionary sandwich floor design - engine goes under occupants in a crash
- ✓Failed moose test at launch - ESP became standard on all cars
- ✓M166 petrol engines are near-indestructible (300k+ km achievable)
- ✓OM668 diesel injector and turbo failures - first-gen common-rail teething issues
Engine Codes Covered:
M166M166 E14M166 E16M166 E19M166 E21OM668OM668 DE17Not sure which year your Mercedes-Benz A Class 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 A Class specialists.
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