MercedesBenz A-Class A250 Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Mercedes-Benz A250 engine specialists. Compare prices on reconditioned, rebuilt and used engines for your A250 - supply & fit available nationwide.
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12-Month Warranty
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From £2,000 to £6,500
Used from £800 · Reconditioned from £2,000 · Common codes: M270.920, M260.920, M139
From £800
Tested, bare/short engine
From £2,000
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Mercedes-Benz A-Class A250 Replacement Engineto Finding the Best Mercedes-Benz A-Class A250 Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMercedes-Benz A-Class A250 - Engine History & Specs at a Glance
The A250 badge arrived with the third-generation W176 A-Class in 2012 as the range-topping petrol model (excluding AMG), using Mercedes' own 2.0-litre M270 turbocharged engine producing 211 hp. It was replaced in 2018 by the W177-generation A250, which introduced the M260 2.0-litre engine - a further development of the M270 with increased power and improved efficiency. The A250 badge has consistently represented the performance-oriented petrol option in the A-Class range.
Variant HistoryMercedes-Benz A-Class A250 - Engine History & Specs at a Glance
The A250 badge arrived with the third-generation W176 A-Class in 2012 as the range-topping petrol model (excluding AMG), using Mercedes' own 2.0-litre M270 turbocharged engine producing 211 hp. It was replaced in 2018 by the W177-generation A250, which introduced the M260 2.0-litre engine - a further development of the M270 with increased power and improved efficiency. The A250 badge has consistently represented the performance-oriented petrol option in the A-Class range.
Mercedes-Benz A-Class A250
Fuel TypePetrol
Engine Size2.0L (1,991 cc) across all generations
Power Output Range211-224 hp (155-165 kW) across all generationsEngine History Timeline
M270.920 2.0L turbo petrol, 211 hp (155 kW) - W176 A250 launch; 350 Nm torque; 7G-DCT standard; 0-60 mph in 6.6 seconds
Facelift with revised ECU calibration; power increased to 218 hp
M260.920 2.0L turbo petrol, 224 hp (165 kW) - W177 A250 launch; 350 Nm torque; 7G-DCT standard; 0-60 mph in 6.2 seconds
M260.920 gains 48V mild-hybrid assistance; +13 hp electric boost; 8G-DCT introduced
Facelift with M260.920 continuing; 48V mild-hybrid now standard
Key Specs Snapshot
Fuel TypePetrolEngine Size2.0L (1,991 cc) across all generationsPower Output Range211-224 hp (155-165 kW) across all generationsYears Produced2012-present (as A250)Every engine fitted to the Mercedes-Benz A-Class A250 is covered below, with UK rebuilt pricing and known failure points.
Mercedes-Benz A-Class A250 Engine Codes - Specifications & Replacement CostMercedes-Benz A-Class A250 Engine Codes - Specifications & Replacement Cost
2.0L Turbo Petrol (2012-2018)
Power Output211 hp (155 kW) at 5,500 rpm (2012-2015); 218 hp (2015-2018 facelift)Torque350 Nm at 1,200-4,000 rpmYears Fitted2012-2018
Compatible Trim Levels
- A250 (W176)
- A250 Sport
- A250 AMG Line
- A250 4MATIC
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£800-£1,800
Reconditioned
Addressed known issues, tested
£2,000-£3,500
Rebuilt
Full teardown, upgraded internals
£2,500-£4,500
Common Failure
The M270 is generally reliable but has several known weaknesses: timing chain stretch causing cold-start rattle, intake valve carbon buildup from direct injection, camshaft actuator failure, and thermostat leaks. Post-2014 models have strengthened timing components.
The A250 has been powered by two generations of Mercedes' 2.0-litre turbo petrol engine - the M270 (W176) and the M260 (W177). Both are performance-oriented units with distinct failure patterns. Rebuilt A250 engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the W176 A250 Rattles on Cold Start
Affected Vehicles
Mercedes-Benz A-Class A250 (M270.920, W176, 2012-2018)
Typical Failure Mileage
80,000-150,000 miles
Root Cause
The M270 turbo petrol engine's timing chain can stretch prematurely, causing a metallic rattling noise when starting from cold. The chain tensioner can also fail, allowing the chain to skip timing. A two-stage chain system connects the crankshaft to both camshafts (with variable cam phasers), and a lower chain drives the oil pump and balance shaft. Lifespan is approximately 80,000 miles. Post-2014 models have strengthened timing components.
Why It Happens
The M270 turbo petrol engine's timing chain can stretch prematurely, causing a metallic rattling noise when starting from cold. The chain tensioner can also fail, allowing the chain to skip timing. A two-stage chain system connects the crankshaft to both camshafts (with variable cam phasers), and a lower chain drives the oil pump and balance shaft. Lifespan is approximately 80,000 miles. Post-2014 models have strengthened timing components.
Dealer (parts + labour)
£1,800-£2,800
Specialist (parts + labour)
£1,200-£1,800
What it involves
Replace timing chain, tensioner, guides, sprockets
Suitability
Best done at first rattle; prevents catastrophic failure
1 - 2 daysDealer (parts + labour)
£4,500-£6,500
Specialist (parts + labour)
£2,500-£4,500
What it involves
Supply & fit rebuilt M270 with upgraded timing components
Suitability
Required if chain has jumped; bent valves almost certain
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Preventative Timing Chain & Tensioner Replacement Minor | £1,800-£2,800 | £1,200-£1,800 | Replace timing chain, tensioner, guides, sprockets | Best done at first rattle; prevents catastrophic failure | 1 - 2 days |
 Full Replacement - rebuilt M270 engine Best Value | £4,500-£6,500 | £2,500-£4,500 | Supply & fit rebuilt M270 with upgraded timing components | Required if chain has jumped; bent valves almost certain | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical W176 A250 is worth £5,000-£15,000 depending on condition and mileage. For vehicles under £6,000, a preventative chain replacement (£1,200-£1,800) is usually the better financial decision than a full engine replacement. For higher-value examples, a rebuilt M270 with warranty (£2,500-£4,500) offers peace of mind.
Our Recommendation
Our Recommendation
If you hear a rattling noise from 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.
Don't Let Engine Failure Write Off Your Mercedes-Benz A-Class A250
Engine failure doesn't always mean the end of the road for your A250. Whether your M270 needs a timing chain replacement, your M260 has a cylinder head failure, or a full rebuild is required, EnginesMarket makes it simple to compare prices from trusted UK Mercedes-Benz A-Class A250 specialists. Every rebuilt engine supplied through our network includes upgraded components designed to address the original failure point - plus a minimum 12-month unlimited-mileage warranty with nationwide delivery. Compare prices today and get back on the road without the main dealer premium.
Compare rebuilt M270 Mercedes-Benz A-Class A250 engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Mercedes-Benz A-Class A250. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mercedes-Benz A-Class A250 Engine ReplacementFrequently Asked Questions
Question 1How much does a Mercedes-Benz A-Class A250 engine replacement cost in the UK-
A replacement engine for an A250 typically costs between £800 and £5,000 depending on the engine code and condition. Used M270 units start from £800-£1,800, reconditioned from £2,000-£3,500, and fully rebuilt M260 engines from £2,800-£5,000. Labour for supply & fit adds £400-£800.
- Used M270 (W176 A250): £800-£1,800
- Rebuilt M270 (W176 A250): £2,500-£4,500
- Rebuilt M260 (W177 A250): £2,800-£5,000
Question 2Does the Mercedes-Benz A-Class A250 have a timing belt or timing chain-
All A250 engines use timing chains, not belts. The M270 (W176) and M260 (W177) both have timing chains designed to last the life of the engine with proper maintenance. However, the M270 is known for timing chain stretch on higher-mileage units - a metallic rattling noise on cold start is the classic warning sign.
- All A250 engines: timing chain
- M270 chain stretch common at 80k-150k miles
- Regular oil changes are critical for chain longevity
Question 3What are the signs of timing chain failure in a Mercedes-Benz A-Class A250-
On M270-equipped A250 models (W176, 2012-2018), the most common symptom is a metallic rattling noise from the engine on cold start. Other signs include loss of power, rough idle, hesitation, and the engine management light illuminating. If you hear any unusual sounds, have the timing system inspected immediately - ignoring the rattle can lead to catastrophic engine failure.
- Cold-start rattle from the timing cover area
- Loss of power and rough running
- Engine management light activation
Question 4Is it worth replacing the engine in a Mercedes-Benz A-Class A250-
It depends on the generation and condition. A W176 A250 is typically worth £5,000-£15,000 - a rebuilt M270 engine (£2,500-£4,500) can be a worthwhile investment if the car is in good condition. A W177 A250 is worth £12,000-£25,000 - a rebuilt M260 engine (£2,800-£5,000) is usually well within the car's value. Always compare the cost of repair against the car's market value.
- W176 (2012-2018): rebuilt M270 viable for good condition cars
- W177 (2018-present): rebuilt M260 usually justifies cost
- Vehicle worth over £8,000: replacement usually justifies the cost
Question 5What is the difference between the M270 and M260 engines in the A250-
The M270 is Mercedes' original 2.0-litre turbo petrol engine used in the W176 A250 (2012-2018), producing 211-218 hp with a timing chain. The M260 is a further development of the M270 used in the W177 A250 (2018-present), producing 224 hp. The M260 features improved efficiency and, in later models, 48V mild-hybrid assistance.
- M270: 2.0L, 211-218 hp, W176 (2012-2018)
- M260: 2.0L, 224 hp, W177 (2018-present), evolution of M270
- Both use timing chains, not belts
Question 6What causes the Mercedes-Benz A-Class A250 to misfire-
On M260-equipped A250 models (W177, 2018-present), misfires are most commonly caused by cylinder head failure - particularly on cylinder 2. The cylinder head can deform when hot, breaking the seal and allowing valves to burn. Fault codes P1CEF85, P030085 and P030285 are common indicators. On M270 models (W176), misfires are more often caused by timing chain stretch or carbon buildup.
- M260 cylinder head failure - common on 2018-2020 models
- M270 timing chain stretch - power loss + rattling
- Carbon buildup on intake valves - common on all direct injection engines
Why Choose UsCompare Mercedes-Benz A-Class A250Engine PricesToday
500+ A250 M270 and M260 engines supplied through our network
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Comparing quotes for your A250 is free, no-obligation, and specific to your exact M270.920 or M260.920 engine code and generation. Our vetted UK specialists provide transparent pricing on used, reconditioned and rebuilt engines - with a minimum 12-month unlimited-mileage warranty on every rebuilt unit. Enter your registration above, compare prices, and choose the right engine for your A-Class today.
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