How much does a Mercedes X204 engine replacement cost in the UK?

A reconditioned X204 engine typically costs £2,000–£6,500 supply only, depending on the engine — the OM651 diesel sits at £2,800–£4,800, while the M272/M276 V6 petrol is £2,500–£6,500 and the OM642 V6 diesel is £3,200–£6,000. Fitting adds £650–£1,500 depending on the variant. Use our calculator for a personalised quote.

Which X204 engine is the most reliable?

The OM651 2.1-litre diesel (GLK 220 CDI/250 CDI) is the most reliable choice — it's Mercedes-developed, efficient, and has a strong track record when serviced properly. The M276 3.5-litre V6 petrol (facelift GLK 350) is also very dependable. Avoid the pre-2010 M272 V6 petrol without balance shaft history.

What are the common problems with the X204?

The OM651 diesel can suffer from injector seal leaks (known as 'Black Death'); the OM642 V6 diesel can develop oil cooler seal leaks; the pre-2010 M272 V6 petrol can have balance shaft wear; and the M276 V6 petrol (facelift) can develop coolant leaks. Regular servicing is key.

Is the Mercedes X204 reliable overall?

Yes — the X204 is generally well-regarded for reliability, especially with the OM651 diesel and facelift petrol engines (M276, M274). The pre-facelift engines (M272, OM642) have more reported issues, but they are still acceptable for lower-mileage use if properly maintained.

Which X204 engine should I avoid?

The pre-2010 M272 V6 petrol (GLK 300/350) without documented balance shaft replacement — this is a known, costly issue. The OM642 V6 diesel (GLK 320/350 CDI) is not an engine to avoid outright, but buyers should be aware of the oil cooler seal risk. Any X204 without documented service history should be approached with caution.

How do I know if my X204 engine needs replacing?

Warning signs include a ticking noise from the engine bay (OM651 injector seals), oil in the coolant (OM642 oil cooler seals), a rattling noise on cold start (M272 balance shaft), or coolant loss (M276 water pump). If you notice any of these, have the car inspected immediately — ignoring them can lead to a full engine failure.

Is it worth replacing a Mercedes X204 engine, or should I scrap the car?

Depends on the car's value. A well-kept X204 is worth £4,000–£12,000, so a £2,800–£4,800 OM651 recon is 23–120% of its value. On a sub-£5,000 X204, the recon may approach or exceed our 70% Mercedes threshold — we'd advise walking away. Against a well-kept £8,000+ example, the same recon drops to 35–60% — a repair decision, not a financial one.

How long do Mercedes X204 engines last?

The OM651 diesel can easily exceed 150,000 miles with regular servicing and early attention to the injector seals. The M276 V6 petrol is similarly durable. The M272 V6 petrol can reach high mileages but requires balance shaft attention on pre-2010 cars. The OM642 V6 diesel is less durable due to its oil cooler seal issues.

What is the difference between the X204 and the newer X253 (GLC)?

The X204 is the first-generation GLK (2008–2015), built on a modified W204 C-Class platform with a boxy, rugged design. The X253 is the second-generation GLC (2015–present), built on the newer MRA platform with updated engines (including M274, M276, OM654) and a sleeker design. Both are covered on their own generation pages.

How do I find my Mercedes X204 engine code?

The engine code is on the VIN plate (visible through the windscreen), on the vehicle documentation, and stamped on the engine block. For the X204, common codes are M272 (petrol V6, pre-facelift), M276 (petrol V6, facelift), M274 (petrol four-cylinder, facelift), OM651 (diesel four-cylinder), and OM642 (diesel V6). Tell us your variant and year, and we'll identify it — 25+ vetted Mercedes specialists will confirm it for free.

X204 Engine Replacement Cost UK

Name: Mercedes GLK X204 UK Engine Enquiry Data 2025
Creator: MercedesEngines.uk

Mercedes GLK X204 Engine Codes — The Complete Database

Every engine fitted to the X204 specifically — including the pre- and post-facelift changes that introduced the M276 and M274 families.

Engine CodeFamilyFuelDisplacementPowerYears (X204)Variants (badges)Reliability2025 EnquiriesAvg. Recon Cost

M272.948M272Petrol, V63.0L (2996cc)231 bhp2008–2012GLK 300 4MATIC★★★☆☆ [PROVISIONAL — pre-2010 balance shaft risk; post-2010 improved]— (pattern data)£2,500–£5,500 [MB-QUOTE]

M272.991M272Petrol, V63.5L (3498cc)306 bhp2009–2012GLK 350 4MATIC★★★☆☆ [PROVISIONAL — pre-2010 balance shaft risk; post-2010 improved]— (pattern data)£2,800–£6,000 [MB-QUOTE]

M276.957M276Petrol, V63.5L (3498cc)306 bhp2012–2015GLK 350 4MATIC★★★★½ [PROVISIONAL — M276 successor to M272; improved reliability]390 [MB-VERIFIED]£3,000–£6,500 [MB-QUOTE]

M274.920M274Petrol, turbo2.0L (1991cc)184–211 bhp2013–2015GLK 200, GLK 250 4MATIC★★★★☆ [PROVISIONAL — well-regarded M274 four-cylinder; reliable when maintained]— (pattern data)£2,000–£4,200 [MB-QUOTE]

OM651.912OM651Diesel, turbo2.1L (2143cc)143–204 bhp2009–2015GLK 200 CDI, GLK 220 CDI, GLK 250 CDI★★★★☆ [PROVISIONAL — Mercedes-developed; reliable but watch injector seals]1,250 [MB-VERIFIED]£2,800–£4,800 [MB-QUOTE]

OM651.916OM651Diesel, turbo2.1L (2143cc)136–170 bhp2008–2015GLK 220 CDI (early)★★★★☆ [PROVISIONAL — OM651 variant; same reliability profile]1,250 [MB-VERIFIED]£2,800–£4,800 [MB-QUOTE]

OM642.832OM642Diesel, V63.0L (2987cc)224 bhp2008–2010 (early)GLK 320 CDI 4MATIC★★★☆☆ [PROVISIONAL — V6 diesel; oil cooler seal and swirl flap issues]880 [MB-VERIFIED]£3,200–£5,500 [MB-QUOTE]

OM642.961OM642Diesel, V63.0L (2987cc)265 bhp2010–2015GLK 350 CDI 4MATIC★★★☆☆ [PROVISIONAL — high-output OM642; same oil cooler seal concerns]880 [MB-VERIFIED]£3,500–£6,000 [MB-QUOTE]

Engine CodeFuelPowerYearsReliabilityEnquiriesAvg. Recon Cost

M272.948M272Petrol, V6231 bhp2008–2012★★★☆☆ [PROVISIONAL — pre-2010 balance shaft risk; post-2010 improved]— (pattern data)£2,500–£5,500 [MB-QUOTE]

M272.991M272Petrol, V6306 bhp2009–2012★★★☆☆ [PROVISIONAL — pre-2010 balance shaft risk; post-2010 improved]— (pattern data)£2,800–£6,000 [MB-QUOTE]

M276.957M276Petrol, V6306 bhp2012–2015★★★★½ [PROVISIONAL — M276 successor to M272; improved reliability]390 [MB-VERIFIED]£3,000–£6,500 [MB-QUOTE]

M274.920M274Petrol, turbo184–211 bhp2013–2015★★★★☆ [PROVISIONAL — well-regarded M274 four-cylinder; reliable when maintained]— (pattern data)£2,000–£4,200 [MB-QUOTE]

OM651.912OM651Diesel, turbo143–204 bhp2009–2015★★★★☆ [PROVISIONAL — Mercedes-developed; reliable but watch injector seals]1,250 [MB-VERIFIED]£2,800–£4,800 [MB-QUOTE]

OM651.916OM651Diesel, turbo136–170 bhp2008–2015★★★★☆ [PROVISIONAL — OM651 variant; same reliability profile]1,250 [MB-VERIFIED]£2,800–£4,800 [MB-QUOTE]

OM642.832OM642Diesel, V6224 bhp2008–2010 (early)★★★☆☆ [PROVISIONAL — V6 diesel; oil cooler seal and swirl flap issues]880 [MB-VERIFIED]£3,200–£5,500 [MB-QUOTE]

OM642.961OM642Diesel, V6265 bhp2010–2015★★★☆☆ [PROVISIONAL — high-output OM642; same oil cooler seal concerns]880 [MB-VERIFIED]£3,500–£6,000 [MB-QUOTE]

Overview

Mercedes GLK X204 — Overview

The X204 is the first generation of the Mercedes‑Benz GLK‑Class, a compact luxury crossover SUV unveiled at the 2008 Beijing Auto Show and launched later that year.

Built on a modified version of the W204 C‑Class platform, it offered a boxy, rugged design language that set it apart from rivals like the BMW X3 and Audi Q5. The engine range spanned from the 2.1‑litre OM651 four‑cylinder diesel to the 3.5‑litre M272 and M276 V6 petrol units, and the 3.0‑litre OM642 V6 diesel. A significant facelift arrived in 2012, bringing new engines including the M276 V6 petrol and updated OM651 diesel variants. Production ended in 2015, succeeded by the GLC‑Class (X253).

Key Facts

Platform

Mercedes W204-based (shared with C‑Class W204)

Predecessor

none (new model line)

Successor

GLC‑Class (X253, 2015–present)

Sibling body styles in this generation

none (GLK is standalone compact SUV)

Market Intelligence

The X204 GLK generated 1,250+ real UK engine enquiries in 2025 [MB‑VERIFIED], concentrated on the OM651 diesel as the most‑requested powertrain.

Mercedes GLK X204 — Overview

The X204 is the first generation of the Mercedes‑Benz GLK‑Class, a compact luxury crossover SUV unveiled at the 2008 Beijing Auto Show and launched later that year.

Built on a modified version of the W204 C‑Class platform, it offered a boxy, rugged design language that set it apart from rivals like the BMW X3 and Audi Q5. The engine range spanned from the 2.1‑litre OM651 four‑cylinder diesel to the 3.5‑litre M272 and M276 V6 petrol units, and the 3.0‑litre OM642 V6 diesel. A significant facelift arrived in 2012, bringing new engines including the M276 V6 petrol and updated OM651 diesel variants. Production ended in 2015, succeeded by the GLC‑Class (X253).

Key Facts

Platform

Mercedes W204-based (shared with C‑Class W204)

Predecessor

none (new model line)

Successor

GLC‑Class (X253, 2015–present)

Sibling body styles in this generation

none (GLK is standalone compact SUV)

Market Intelligence

The X204 GLK generated 1,250+ real UK engine enquiries in 2025 [MB‑VERIFIED], concentrated on the OM651 diesel as the most‑requested powertrain.

Best & Worst Engines

Best Diesel Overall

OM651.912 (GLK 220 CDI / 250 CDI)

“Mercedes' own 2.1‑litre four‑cylinder diesel, introduced in 2008, is the pick of the X204 diesel range — efficient, refined, and backed by a strong reliability record when serviced properly. The 250 CDI variant delivers 204 bhp with 500 Nm of torque.”

Who it's for: buyers who want a modern, efficient diesel for high‑mileage SUV motoring.

Best Petrol Overall

M276.957 (GLK 350 4MATIC, facelift)

“Mercedes' 3.5‑litre V6, introduced with the 2012 facelift, replaced the M272 with a more refined and reliable unit. It delivers 306 bhp with a silky character and strong torque.”

Who it's for: buyers who want V6 petrol refinement without the pre‑facelift M272's balance shaft concerns.

Highest Risk

M272.948/991 (GLK 300 / 350, pre‑2010)

“The M272 V6 petrol is known for balance shaft sprocket wear on pre‑2010 models — a manufacturing defect that can lead to timing chain issues and catastrophic engine damage if ignored. Post‑2010 models are significantly improved.”

Who it's for: buyers who want V6 petrol power but must verify the balance shaft has been addressed.

Most Expensive Failure

OM642.832/961 (GLK 320 CDI / 350 CDI) — oil cooler seal leak

“The V6 diesel's oil cooler seals are prone to failure, leaking oil into the V of the engine. Repair requires significant disassembly and can be costly if caught late.”

Who it's for: buyers who want V6 diesel torque but can afford the premium maintenance.

Best Value

OM651.912 (GLK 220 CDI)

“The mid‑range diesel offers the best balance of performance (170 bhp), economy (up to 44 mpg), and reliability. It's the sweet spot in the X204 range.”

Who it's for: fleet buyers and high‑mileage drivers.

Most Overlooked

M274.920 (GLK 250 4MATIC)

“The 2.0‑litre four‑cylinder turbo petrol delivers 211 bhp with genuine performance and strong torque. It's often overlooked in favour of the diesels but offers a compelling blend of power and efficiency.”

Who it's for: buyers who want petrol power without the V6 running costs.

Best Diesel Overall

OM651.912 (GLK 220 CDI / 250 CDI)

“Mercedes' own 2.1‑litre four‑cylinder diesel, introduced in 2008, is the pick of the X204 diesel range — efficient, refined, and backed by a strong reliability record when serviced properly. The 250 CDI variant delivers 204 bhp with 500 Nm of torque.”

Who it's for: buyers who want a modern, efficient diesel for high‑mileage SUV motoring.

Best Petrol Overall

M276.957 (GLK 350 4MATIC, facelift)

“Mercedes' 3.5‑litre V6, introduced with the 2012 facelift, replaced the M272 with a more refined and reliable unit. It delivers 306 bhp with a silky character and strong torque.”

Who it's for: buyers who want V6 petrol refinement without the pre‑facelift M272's balance shaft concerns.

Highest Risk

M272.948/991 (GLK 300 / 350, pre‑2010)

“The M272 V6 petrol is known for balance shaft sprocket wear on pre‑2010 models — a manufacturing defect that can lead to timing chain issues and catastrophic engine damage if ignored. Post‑2010 models are significantly improved.”

Who it's for: buyers who want V6 petrol power but must verify the balance shaft has been addressed.

Most Expensive Failure

OM642.832/961 (GLK 320 CDI / 350 CDI) — oil cooler seal leak

“The V6 diesel's oil cooler seals are prone to failure, leaking oil into the V of the engine. Repair requires significant disassembly and can be costly if caught late.”

Who it's for: buyers who want V6 diesel torque but can afford the premium maintenance.

Best Value

OM651.912 (GLK 220 CDI)

“The mid‑range diesel offers the best balance of performance (170 bhp), economy (up to 44 mpg), and reliability. It's the sweet spot in the X204 range.”

Who it's for: fleet buyers and high‑mileage drivers.

Most Overlooked

M274.920 (GLK 250 4MATIC)

“The 2.0‑litre four‑cylinder turbo petrol delivers 211 bhp with genuine performance and strong torque. It's often overlooked in favour of the diesels but offers a compelling blend of power and efficiency.”

Who it's for: buyers who want petrol power without the V6 running costs.

Mercedes GLK X204 — Ownership Economics

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

M272.948/991 (GLK 300/350, pre‑2010)60k–100kBalance shaft wear (pre‑2010), intake manifold flaps£800–£2,000£2,500–£6,000

Risk vs Reward — pre‑2010 cars need balance shaft history.

M272.948/991 (GLK 300/350, 2010–2012)60k–100kIntake manifold flaps, coolant leaks£500–£1,200£2,500–£6,000

Good Value — post‑2010 M272 is improved.

M276.957 (GLK 350, facelift)50k–90kCoolant leaks, water pump£500–£1,200£3,000–£6,500

Best Petrol — refined and reliable.

M274.920 (GLK 200/250)40k–80kTiming chain wear, carbon buildup£500–£1,200£2,000–£4,200

Modern Petrol — efficient and responsive.

OM651.912/916 (GLK 200/220/250 CDI)80k–150kInjector seal leaks (Black Death), DPF clogging£400–£1,200£2,800–£4,800

Best Diesel — efficient, durable, Mercedes‑developed.

OM642.832 (GLK 320 CDI)60k–100kOil cooler seal leak, swirl flap motor£800–£1,500£3,200–£5,500

V6 Diesel — smooth but watch for oil leaks.

OM642.961 (GLK 350 CDI)60k–120kOil cooler seal leak, AdBlue/SCR issues£800–£1,800£3,500–£6,000

Powerful Diesel — more power, more maintenance.

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

M272.948/991 (GLK 300/350, pre‑2010)60k–100kBalance shaft wear (pre‑2010), intake manifold flaps£800–£2,000£2,500–£6,000

Risk vs Reward — pre‑2010 cars need balance shaft history.

M272.948/991 (GLK 300/350, 2010–2012)60k–100kIntake manifold flaps, coolant leaks£500–£1,200£2,500–£6,000

Good Value — post‑2010 M272 is improved.

M276.957 (GLK 350, facelift)50k–90kCoolant leaks, water pump£500–£1,200£3,000–£6,500

Best Petrol — refined and reliable.

M274.920 (GLK 200/250)40k–80kTiming chain wear, carbon buildup£500–£1,200£2,000–£4,200

Modern Petrol — efficient and responsive.

OM651.912/916 (GLK 200/220/250 CDI)80k–150kInjector seal leaks (Black Death), DPF clogging£400–£1,200£2,800–£4,800

Best Diesel — efficient, durable, Mercedes‑developed.

OM642.832 (GLK 320 CDI)60k–100kOil cooler seal leak, swirl flap motor£800–£1,500£3,200–£5,500

V6 Diesel — smooth but watch for oil leaks.

OM642.961 (GLK 350 CDI)60k–120kOil cooler seal leak, AdBlue/SCR issues£800–£1,800£3,500–£6,000

Powerful Diesel — more power, more maintenance.

The X204 rule

A £2,800–£4,800 OM651 recon against a £4,000–£12,000 X204 sits at 23–120% of the car's value. On a sub‑£5,000 X204, that brushes our 70% Mercedes threshold — we'll honestly tell you to walk away. Against a well‑kept £8,000+ example, the same recon drops to a routine 35–60% — a repair decision, not a financial one. Value the car first.

Key Takeaways

Which X204 Costs Least To Own?
GLK 220 CDI (OM651) — best balance of economy and reliability.
Which X204 Costs Most To Own?
GLK 350 CDI (OM642) — V6 diesel running costs add up.
Which X204 Is Best Value?
GLK 220 CDI (OM651) — the sweet spot in the range.

Common Problems

01

OM651

Injector Seal Leaks (Black Death)

Affected models:

GLK 200 CDI, 220 CDI, 250 CDI (OM651)

Typical failure mileage:

60,000–120,000 miles

Root cause:

The injector seals on the OM651 can fail, allowing combustion gases to escape past the injector. This creates a carbon buildup that sounds like a ticking noise and can eventually damage the cylinder head.

Tiered Cost Table

Our Recommendation

If you hear a ticking noise from the engine bay, have the injector seals checked immediately — a £400–£1,000 repair is far cheaper than the £2,800–£4,800 replacement that follows if the head is damaged.

Compare OM651 engine prices for your X204 diesel

02

M272

Balance Shaft Wear (pre‑2010)

Affected models:

GLK 300, GLK 350 (pre‑facelift, 2008–2010)

Typical failure mileage:

60,000–100,000 miles

Root cause:

The M272's balance shaft sprocket can wear prematurely due to a manufacturing defect, leading to timing chain issues and, if ignored, catastrophic engine failure.

Tiered Cost Table

Our Recommendation

On pre‑2010 GLK 300 and 350 models, have the balance shaft inspected at 60,000 miles — an £800–£1,800 preventative repair is cheap insurance against a £2,500–£5,500 engine replacement.

Compare M272 engine prices for your X204 V6 petrol

03

OM642

Oil Cooler Seal Leak

Affected models:

GLK 320 CDI, 350 CDI (OM642)

Typical failure mileage:

60,000–120,000 miles

Root cause:

The OM642's oil cooler seals (located in the V of the engine) can degrade and leak, allowing oil to mix with coolant or leak onto the engine. Repair requires significant disassembly.

Tiered Cost Table

Our Recommendation

If you notice oil in the coolant or a burning oil smell on a GLK 320 CDI or 350 CDI, have the oil cooler seals inspected immediately — an £800–£1,500 repair is far cheaper than the £3,200–£5,500 replacement that follows if the engine overheats.

Compare OM642 engine prices for your X204 V6 diesel

04

M276

Coolant Leaks (facelift V6)

Affected models:

GLK 350 (facelift, M276)

Typical failure mileage:

50,000–90,000 miles

Root cause:

The M276's water pump and plastic coolant fittings can degrade over time, leading to coolant loss and potential overheating.

Tiered Cost Table

Our Recommendation

Replace the water pump proactively at 60,000 miles — a £400–£800 repair is cheap insurance against a £2,500–£4,500 engine replacement.

Compare M276 engine prices for your X204 V6 petrol

X204 Engine Replacement Costs — By Engine and Condition

VariantEngine CodeUsed (Supply)Reconditioned (Supply)Rebuilt (Supply)Labour Hours

GLK 200M274.920£900–£1,900£2,000–£4,200£3,200–£5,50010–14 hrs

GLK 250 4MATICM274.920£1,000–£2,200£2,200–£4,500£3,500–£5,80010–14 hrs

GLK 300 4MATICM272.948£1,200–£2,800£2,500–£5,500£4,000–£7,00012–16 hrs

GLK 350 4MATIC (pre‑facelift)M272.991£1,500–£3,200£2,800–£6,000£4,500–£7,50012–16 hrs

GLK 350 4MATIC (facelift)M276.957£1,800–£3,500£3,000–£6,500£4,500–£8,00012–16 hrs

GLK 200 CDIOM651.912/916£1,200–£2,200£2,500–£4,200£3,500–£5,80010–14 hrs

GLK 220 CDIOM651.912/916£1,500–£2,800£2,800–£4,800£4,000–£6,50010–14 hrs

GLK 250 CDIOM651.912£1,800–£3,200£3,000–£5,000£4,200–£6,80010–14 hrs

GLK 320 CDIOM642.832£1,800–£3,200£3,200–£5,500£4,500–£7,50012–16 hrs

GLK 350 CDIOM642.961£2,000–£3,500£3,500–£6,000£5,000–£8,00012–16 hrs

No Generation variance from the Model Page's baseline figures — the X204 shares its platform with the C‑Class (W204), so engine‑bay access and labour times are consistent across the range. Costs are inherited directly per the Authority Model, with no divergence note required.

Core Variants

Diesel Variants

GLK 200 CDIGLK 220 CDIGLK 250 CDIGLK 320 CDIGLK 350 CDI

Petrol Variants

GLK 200GLK 250 4MATICGLK 300 4MATICGLK 350 4MATIC

Scope note: All variants listed are X204 first‑generation GLK only. The GLK was replaced by the GLC‑Class (X253) in 2015.

Core Variants

Diesel Variants

GLK 200 CDIGLK 220 CDIGLK 250 CDIGLK 320 CDIGLK 350 CDI

Petrol Variants

GLK 200GLK 250 4MATICGLK 300 4MATICGLK 350 4MATIC

Scope note: All variants listed are X204 first‑generation GLK only. The GLK was replaced by the GLC‑Class (X253) in 2015.

Market Intelligence

Most Requested E90 Engines (2025)

1.1. OM651 (2.1 diesel) — most‑requested across the Mercedes range [MB‑VERIFIED]
2.2. OM642 (3.0 V6 diesel) — strong demand for the 350 CDI
3.3. M272/M276 (V6 petrol) — enthusiast demand for the GLK 350

Most Requested E90 Variants

1.1. GLK 220 CDI
2.2. GLK 350 CDI
3.3. GLK 350 4MATIC (petrol)

Average E90 Replacement Cost

£2,000–£6,500 supply only [MB‑QUOTE]

Most Common E90 Failures

1.1. OM651 injector seal leaks (Black Death)
2.2. OM642 oil cooler seal leaks
3.3. M272 balance shaft wear (pre‑2010)

Live Feed

VehicleLocationIssueEnquiries

Mercedes GLK 220 CDI X204 (OM651)

London

Ticking noise from engine bay, suspected injector seal leak

5

enquiries

Mercedes GLK 350 CDI X204 (OM642)

Birmingham

Oil in coolant, suspected oil cooler seal failure

4

enquiries

Mercedes GLK 350 X204 (M272)

Manchester

Rough idle, intake manifold flap issue

3

enquiries

Updated Monthly

FAQ

BMW 3 Series E90 rear three-quarter view

Why UK Mercedes X204 Owners Trust MercedesEngines.uk

Trusted X204 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated, and reviewed by real Mercedes owners, as part of the Engine Finders network.
Compare X204 Engine Replacement Companies
see prices, warranty terms, and supply & fit options side‑by‑side before you commit.
UK Engine Replacement Services for X204
covering every variant from GLK 200 CDI to GLK 350 CDI, with supply‑only or full supply & fit available nationwide.

Find the best Mercedes X204 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare Mercedes GLK X204 Engine Prices on EnginesMarket

Why UK Mercedes X204 Owners Trust MercedesEngines.uk

Trusted X204 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated, and reviewed by real Mercedes owners, as part of the Engine Finders network.
Compare X204 Engine Replacement Companies
see prices, warranty terms, and supply & fit options side‑by‑side before you commit.
UK Engine Replacement Services for X204
covering every variant from GLK 200 CDI to GLK 350 CDI, with supply‑only or full supply & fit available nationwide.

Find the best Mercedes X204 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare Mercedes GLK X204 Engine Prices on EnginesMarket

Mercedes GLK X204 Engines — The Complete UK Guide

Mercedes GLK X204 Engine Codes — The Complete Database

Mercedes GLK X204 — Overview

Mercedes GLK X204 — Overview

Best & Worst Engines

Mercedes GLK X204 — Ownership Economics

Common Problems

X204 Engine Replacement Costs — By Engine and Condition

Core Variants

Core Variants

Market Intelligence

FAQ

Why UK Mercedes X204 Owners Trust MercedesEngines.uk

Why UK Mercedes X204 Owners Trust MercedesEngines.uk