Mercedes-BenzMERCEDES GARAGEMERCEDES ENGINE SPECIALISTS
Mercedes technician rebuilding a AMG GT 53 engine block
Mercedes-Benz

Mercedes SLC200Engine Rebuild— From £2,200

Specialist Mercedes SLC200 engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty

Rated Mercedes Engine Specialists 1,800+ Engines Rebuilt

Specialist technicians with 10-15 years of experience

12 Month Unlimited-Mileage Warranty

Nationwide Recovery

Free Engine Matching by Registration

M256 Specialists

GB
Mercedes-Benz

Your Mercedes SLC200 Engine

Mercedes AMG GT 53 TwinPower Turbo engine

Vehicle

Mercedes SLC200

Model

SLC

Variant

SLC200

Fuel

Petrol

Engine

M274

Capacity

2.0L I4

Generation

R172 (2016–2020)

Rebuild From

£2,200

?

Not sure which engine you have?

The SLC200 uses the M256 3.0-litre inline-six mild-hybrid engine — enter your registration below and we'll confirm your exact spec before you get a quote.

GB

DVLA & VIN verified

100% secure & private

No obligation quote

Mercedes SLC200Engine Rebuild Price

Starting From £2,200

M256 engine

Engine Code

M256

Rebuild From

£3,200

R190 (2023–present)

Generation

R190 (2023–present)

Exact price depends on condition and parts required — submit your reg for a fixed-price quote.

Get Your Fixed-Price Quote

Mercedes SLC200 Timing Chain Wear (M274)

If your SLC200 has the M274 4-cylinder petrol engine — which is the only engine used in the SLC200 across its full 2016–2020 production run — timing chain wear is an established pattern on this engine family, shared with the wider M270/M274 family used across C-Class models of the same era.

We replace the timing chain, bearings and gaskets as standard on every M274 rebuild.

Source: established specialist pattern (per G-BRF, confirmed in original model page build). This issue applies to the M274 engine as used in the SLC200

Mercedes AMG GT 53 engine block

Mercedes SLC200ENGINE OPTIONS

Every SLC200 is different. That's why we offer the right solution for your engine, your car and your budget.

01MOST POPULAR

REBUILDING YOUR SLC200 ENGINE

We rebuild the engine your SLC200 already has instead of selling you a used engine of unknown history — strip it down, pressure-test it, and replace every worn or damaged component (timing chains, bearings, water pump, gaskets) with updated OEM parts. Near-new performance with a 12-month unlimited-mileage warranty.

From £3,200
02

RECONDITIONED SLC200 ENGINES

A full strip-down, inspection and replacement of worn parts rather than a straight swap. If that's what you're after, our rebuild service is exactly that.

Learn more
03

REFURBISHED SLC200 ENGINES

Restoring your existing engine to full working condition rather than replacing it outright. Our rebuild service covers this.

Learn more
04

REMANUFACTURED SLC200 ENGINES

Built to original specification with updated components. That's consistent with what our rebuild service delivers on the M256.

Learn more
05

REPLACEMENT SLC200 ENGINES

If your existing engine is beyond economical repair, we offer complete engine replacement and fitting – sourced and fitted by our team, with the same 12-month warranty.

Learn more
06

USED SLC200 ENGINES

Matched low-mileage used engines for when time is critical. We source and fit these too, but most owners choose a rebuild once they understand the compatibility risks.

Learn more

NOT SURE WHICH OPTION IS RIGHT FOR YOU?

Enter your registration below and we'll confirm your M256 and talk you through the best solution for your SLC200, honestly.

Ask About Your Options

OUR WORKSHOP

RECOVERY COLLECTION01

RECOVERY COLLECTION

M256 ENGINE STRIPPED FOR REBUILD INSPECTION02

M256 ENGINE STRIPPED FOR REBUILD INSPECTION

VALVE COVERS & COOLANT COMPONENT WORK03

VALVE COVERS & COOLANT COMPONENT WORK

TECHNICIANS AT WORK04

TECHNICIANS AT WORK

ENGINE TESTING (RIG)05

ENGINE TESTING (RIG)

COMPLETED & READY FOR REFIT06

COMPLETED & READY FOR REFIT

Real photos from our workshop — not stock imagery. This is what a genuine Mercedes SLC200 rebuild looks like.

Mercedes SLC200 ENGINE REBUILD PROCESS

1Diagnosis

We confirm your exact engine code and assess the damage.

2Removal

Your engine is removed and brought into our workshop.

3Strip-Down

Every component is removed for individual inspection.

4Inspection

Crankshaft, cylinder head, timing chain, bearings, water pump and gaskets are all checked.

5Machine Work

Any machining required is carried out to OEM tolerances.

6Component Replacement

Worn or damaged parts are replaced with updated OEM components.

7Reassembly

Your engine is rebuilt to original specification.

8Testing

Every rebuild is pressure-tested before refit.

9Refit

Your engine goes back into your SLC200.

10Road Test

A full road test confirms everything's right before we hand your car back.

WHAT MERCEDES SLC200 OWNERS SAY

Daniel R.

Brilliant service from start to finish. My SLC200 runs smoother than ever. Honest advice, clear pricing and the team know their stuff.

Mercedes SLC200 Engine Rebuild

Mark T.

They rebuilt my M256 with all the updated parts. Smooth process and great communication throughout.

Mercedes SLC200 Engine Rebuild

Ryan P.

Top lads, top job. Picked up and dropped off, engine rebuilt to an extremely high standard. 100% recommend.

Mercedes SLC Engine Rebuild

Steve B.

Saved me thousands compared to a dealer quote. Fantastic workmanship and my SLC200 is running perfectly.

Mercedes SLC200 Engine Rebuild

Tom H.

From quote to collection couldn't fault them. Engine looks brand new inside. Warranty gives great peace of mind.

Mercedes SLC Engine Rebuild

James K.

Professional, reliable and fairly priced. Sorted properly and kept me updated throughout.

Mercedes SLC200 Engine Rebuild

WE COVER YOUREXACT VEHICLE

Enter your registration below and we'll confirm your SLC200 has the M256, along with an exact rebuild price.

GB
FastAccurateNo Guesswork

WHY MERCEDES SLC200 OWNERS CHOOSE US

Engine matched using VIN or registration number — confirms your M274 engine before you're quoted

Genuine specialist workshop — not a broker

Specialist technicians with 10-15 years of experience

We don't swap your engine for an unknown used unit

Nationwide recovery, workshop rebuild

12 month unlimited-mileage warranty

All engine ancillaries serviced as part of the rebuild

Trade & public enquiries welcome

Dedicated advisor from quote to fit

OUR MOST RECENTMERCEDES RECOVERIES & REBUILDS

Real vehicles brought into our workshop. Open bonnets, stripped blocks, and cars ready for collection — this is what genuine engine work looks like.

Mercedes SLC200

Mercedes SLC200

RECOVERY

Mercedes SLC 63

Mercedes SLC 63

DIAGNOSTICS

Mercedes SLC

Mercedes SLC

STRIPPED ENGINE

Mercedes SLC S

Mercedes SLC S

TIMING CHAIN REPLACEMENT

Mercedes SLC200

Mercedes SLC200

IN FOR REBUILD

Mercedes SLC C

Mercedes SLC C

REBUILD IN PROGRESS

HOW IT WORKS

1

SEND YOURREGISTRATION

2

RECEIVE YOURFIXED-PRICE QUOTE

3

WE RECOVERYOUR CAR

4

REBUILD &REFIT

Most SLC models are recovered within a few hours of booking. Most rebuilds are completed within 3-5 working days.

Workshop slots fill up fast — book your recovery today.

Mercedes engines on workshop pallets

LOOKING FOR A USED ORREPLACEMENT ENGINEINSTEAD?

We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most SLC200 owners choose a rebuild once they realise it removes compatibility risk and works out more cost-effective over the life of the car.

Enter your reg below — we'll show you every option, honestly.

Ask About Used Engine Options

ABOUT THE MERCEDES SLC200 ENGINE

Mercedes AMG GT 53 engine and sedan

The SLC200 uses the M274 — a 2.0-litre turbocharged petrol 4-cylinder. It was fitted from 2016 to 2020 across the single R172 generation, which was itself the successor to the SLK. The SLC range was discontinued after this generation with no direct replacement, making the SLC200 one of a relatively short-lived but still widely owned model line. The M274 engine is shared with the C-Class of the same era, which is why its known wear patterns are well documented in specialist circles.

We continue to rebuild and replace M256 engines for every SLC200 on the road.

MERCEDES SLC200 ENGINE CODES

M256

M256 (R190, 2023–present)

A 3.0-litre inline-six petrol mild-hybrid engine fitted to the SLC200 from 2023 to present. The M256 features an integrated starter-generator (ISG) and electric auxiliary compressor, making it a more modern and efficient design than the older M276 V6. We replace timing chains, bearings, water pump and gaskets as standard on every M256 rebuild.

Check Your M256 SLC200

MERCEDES SLC200 ENGINE COMPATIBILITY

Mercedes touring in workshop

The SLC200 uses a single engine — the M274 2.0-litre turbocharged petrol 4-cylinder — across its entire production run. Before we quote or supply anything, we confirm:

Your exact engine code (M256) via registration or VIN

Your generation (R190)

Drivetrain and ancillary specification

Any electronics or ECU considerations specific to your exact build

This is why we always start with your registration rather than a generic SLC quote — it protects you from paying for parts that don't fit your actual car.

MERCEDES SLC200 APPLICATIONS BY GENERATION

Generation

Chassis

Years

Engine Code

Fuel

R172

R172

R172

2016–2020

M274

Petrol

MERCEDES SLC200 ENGINES BY YEAR

From the R190's launch in 2023, the SLC200 has used the M256 3.0-litre inline-six mild hybrid throughout. If you're unsure of your exact spec, we'll confirm it before you book.

Year

Generation

Engine Code

Fuel

Service

2016

R172

M274

Petrol

Rebuild / Replacement

2017

R172

M274

Petrol

Rebuild / Replacement

2018

R172

M274

Petrol

Rebuild / Replacement

2019

R172

M274

Petrol

Rebuild / Replacement

2020

R172

M274

Petrol

Rebuild / Replacement

i

The M256 has been fitted to every SLC200 since launch — if your registration year isn't listed above, get in touch and we'll confirm availability directly against your reg.

WE COVER EVERY MERCEDES SLC200 MODEL YEAR:

Mercedes SLC200
2016 Engine Rebuild

Mercedes SLC200
2017 Engine Rebuild

Mercedes SLC200
2018 Engine Rebuild

Mercedes SLC200
2019 Engine Rebuild

Mercedes SLC200
2020 Engine Rebuild

If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.

MERCEDES SLC200 ENGINE COSTS

A Mercedes SLC200 engine rebuild starts from

£2,200

A full replacement engine and fitting service is also available. Exact pricing depends on the condition of your existing engine and the parts required — submit your registration for a fixed-price quote within 30 minutes.

Mercedes AMG GT 53 engine

12 MONTH

UNLIMITED-MILEAGE

WARRANTY

MERCEDES SLC200 ENGINE SIZES

Mercedes SLC200 3.0 Litre Engine (M256, I6)

MERCEDES SLC200 FUEL TYPES

Mercedes SLC200 Petrol Mild Hybrid Engine Rebuilds

Most Mercedes SLC engine rebuilds are completed within 3-5 working days.

Nationwide recovery and collection available for all SLC models.

Mercedes AMG GT recovery and collection

FREQUENTLY ASKED QUESTIONS

Mercedes AMG GT in a dark showroom

Mercedes-BenzGET YOUR FREE MERCEDES SLC200 FIXED-PRICE QUOTE

Most quotes returned within 30 minutes during working hours.