Which Mercedes‑Benz CLA‑Class X118 engine is the most reliable?

The OM654 diesel (200 d/220 d) is the most robust — it has proven itself across the Mercedes range with fewer major issues than the M282 petrol. Among petrols, the M260 2.0‑litre turbo (CLA 250) is the most dependable, with timing chain stretch its only real watchpoint.

What are the common problems with the Mercedes‑Benz CLA‑Class X118?

Oil consumption and timing chain stretch on the M282 1.3‑litre petrol, AdBlue system failures on the OM654 diesel, timing chain stretch on the M260 2.0‑litre, and sensor‑derived misfire issues on the high‑strung M139 AMG engine. The OM608 diesel is generally basic but can suffer DPF clogging.

Is the Mercedes‑Benz CLA‑Class X118 reliable?

It depends on the engine. The M260 and OM654 are solid choices. The M282 (Renault‑developed 1.3‑litre) has the most owner‑reported issues, particularly oil consumption. The AMG M139 is reliable for a high‑performance engine but demands meticulous maintenance. Choose wisely based on your budget and priorities.

Which Mercedes‑Benz CLA‑Class X118 engine should I avoid?

No engine outright — but a pre‑facelift M282 without documented oil consumption checks is the one we consistently advise buyers to inspect carefully. A neglected M139 AMG without full service history is the second, as sensor repairs can be expensive.

How do I know if my Mercedes‑Benz CLA‑Class X118 engine needs replacing?

Excessive oil consumption (M282), cold‑start rattle (M260/M282 timing chain), AdBlue countdown warnings (OM654), or misfires under load (M139) are the key warning signs. Use our diagnostic calculator for a personalised assessment.

Is it worth replacing a Mercedes‑Benz CLA‑Class X118 engine, or should I scrap the car?

Depends on the car's value. Against a well‑kept £18,000 X118, a £4,000 OM654 recon is 22% of the car's value — safe. Against a tired £8,000 example, the same recon is 50% — still under the 70% Mercedes‑Benz threshold, but borderline. Value the car and its history first.

How long do Mercedes‑Benz CLA‑Class X118 engines last?

The OM654 diesel can exceed 200,000 miles with proper servicing, though AdBlue maintenance is recurring. The M260 petrol can comfortably reach 150,000+ miles with regular oil changes. The M282 has a more variable record — some exceed 100,000 miles without issues, others need attention earlier.

What is the difference between the X118 Shooting Brake and the C118 Saloon?

Both are second‑generation CLA‑Class, sharing the MFA2 platform and all engines. The X118 is the 5‑door estate/Shooting Brake (2019–2025, this page), while the C118 is the 4‑door saloon (2019–2025). Costs vary slightly by body style due to labour access — see each generation's own page for specifics.

How do I find my Mercedes‑Benz CLA‑Class X118 engine code?

Listed on the VIN plate and vehicle documentation; block stamping is visible from below on most engines. Tell us your variant (CLA 180, 200, 250, AMG 35, AMG 45, or diesel) and we'll identify it — 25+ vetted Mercedes specialists will confirm it for free.

X118 Engine Replacement Cost UK

Mercedes‑Benz CLA‑Class X118 Engine Codes — The Complete Database

Every engine fitted to the X118 Shooting Brake specifically — from the entry‑level M282 to the fire‑breathing M139 in the AMG 45 S.

Engine CodeFamilyFuelDisplacementPowerYears (X118)Variants (badges)Reliability2025 EnquiriesAvg. Recon Cost

M282.914M282Petrol, turbo1.3L (1332cc)136 hp (100 kW)2019–2025CLA 180★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,800–£3,200 [MB‑QUOTE]

M282.914M282Petrol, turbo1.3L (1332cc)163 hp (120 kW)2019–2025CLA 200★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,800–£3,200 [MB‑QUOTE]

M260.920M260Petrol, turbo2.0L (1991cc)224 hp (165 kW)2019–2025CLA 250★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£2,000–£3,800 [MB‑QUOTE]

M260.920M260Petrol, turbo2.0L (1991cc)306 hp (225 kW)2019–2025AMG CLA 35 4MATIC★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£3,500–£6,000 [MB‑QUOTE]

M139.980M139Petrol, turbo2.0L (1991cc)387 hp (285 kW)2019–2023AMG CLA 45 4MATIC+★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£5,000–£8,500 [MB‑QUOTE]

M139.980M139Petrol, turbo2.0L (1991cc)421 hp (310 kW)2019–2025AMG CLA 45 S 4MATIC+★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£5,500–£9,000 [MB‑QUOTE]

OM608.915OM608Diesel, turbo1.5L (1461cc)116 hp (85 kW)2019–2025CLA 180 d★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,500–£2,800 [MB‑QUOTE]

OM654.920OM654Diesel, turbo2.0L (1950cc)150 hp (110 kW)2019–2025CLA 200 d★★★★☆ [PROVISIONAL — pending dedicated Engine Page]520 [MB‑VERIFIED]£3,000–£5,000 [MB‑QUOTE]

OM654.920OM654Diesel, turbo2.0L (1950cc)190 hp (140 kW)2019–2025CLA 220 d★★★★☆ [PROVISIONAL — pending dedicated Engine Page]520 [MB‑VERIFIED]£3,000–£5,000 [MB‑QUOTE]

M282.914 (PHEV)M282Petrol PHEV1.3L (1332cc)218 hp (160 kW)2020–2025CLA 250 e★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£2,500–£4,500 [MB‑QUOTE]

Engine CodeFuelPowerYearsReliabilityEnquiriesAvg. Recon Cost

M282.914M282Petrol, turbo136 hp (100 kW)2019–2025★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,800–£3,200 [MB‑QUOTE]

M282.914M282Petrol, turbo163 hp (120 kW)2019–2025★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,800–£3,200 [MB‑QUOTE]

M260.920M260Petrol, turbo224 hp (165 kW)2019–2025★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£2,000–£3,800 [MB‑QUOTE]

M260.920M260Petrol, turbo306 hp (225 kW)2019–2025★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£3,500–£6,000 [MB‑QUOTE]

M139.980M139Petrol, turbo387 hp (285 kW)2019–2023★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£5,000–£8,500 [MB‑QUOTE]

M139.980M139Petrol, turbo421 hp (310 kW)2019–2025★★★★☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£5,500–£9,000 [MB‑QUOTE]

OM608.915OM608Diesel, turbo116 hp (85 kW)2019–2025★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£1,500–£2,800 [MB‑QUOTE]

OM654.920OM654Diesel, turbo150 hp (110 kW)2019–2025★★★★☆ [PROVISIONAL — pending dedicated Engine Page]520 [MB‑VERIFIED]£3,000–£5,000 [MB‑QUOTE]

OM654.920OM654Diesel, turbo190 hp (140 kW)2019–2025★★★★☆ [PROVISIONAL — pending dedicated Engine Page]520 [MB‑VERIFIED]£3,000–£5,000 [MB‑QUOTE]

M282.914 (PHEV)M282Petrol PHEV218 hp (160 kW)2020–2025★★★☆☆ [PROVISIONAL — pending dedicated Engine Page]— (pattern data)£2,500–£4,500 [MB‑QUOTE]

Overview

Mercedes‑Benz CLA‑Class X118 — Overview

The X118 is the Shooting Brake (estate) bodystyle of the second‑generation Mercedes‑Benz CLA‑Class, launched in 2019 as the successor to the X117.

It shares the MFA2 platform with the A‑Class (W177) and GLA (H247), offering a more practical estate body while retaining the CLA's sleek, coupé‑like roofline. A significant 2023 facelift brought mild‑hybrid technology to most petrol engines, improved infotainment, and updated styling. Every X118 is powered by a transversely‑mounted four‑cylinder engine, driving the front wheels or 4MATIC all‑wheel drive.

Key Facts

Platform

Mercedes‑Benz MFA2 (Modular Front Architecture)

Predecessor

X117

Successor

X178 (2025‑on)

Sibling body styles in this generation

C118 Saloon

Market Intelligence

The second‑generation CLA‑Class (C118/X118 combined) generated real UK engine enquiries in 2025 [MB‑VERIFIED], with the OM654 diesel and M260 petrol commanding the strongest specialist interest.

Mercedes‑Benz CLA‑Class X118 — Overview

The X118 is the Shooting Brake (estate) bodystyle of the second‑generation Mercedes‑Benz CLA‑Class, launched in 2019 as the successor to the X117.

It shares the MFA2 platform with the A‑Class (W177) and GLA (H247), offering a more practical estate body while retaining the CLA's sleek, coupé‑like roofline. A significant 2023 facelift brought mild‑hybrid technology to most petrol engines, improved infotainment, and updated styling. Every X118 is powered by a transversely‑mounted four‑cylinder engine, driving the front wheels or 4MATIC all‑wheel drive.

Key Facts

Platform

Mercedes‑Benz MFA2 (Modular Front Architecture)

Predecessor

X117

Successor

X178 (2025‑on)

Sibling body styles in this generation

C118 Saloon

Market Intelligence

The second‑generation CLA‑Class (C118/X118 combined) generated real UK engine enquiries in 2025 [MB‑VERIFIED], with the OM654 diesel and M260 petrol commanding the strongest specialist interest.

Best & Worst Engines

Best Diesel Overall

OM654.920 (CLA 220 d, 190hp)

“The modern 2.0‑litre diesel that replaced the ageing OM651. Excellent fuel economy, strong torque (400Nm), and none of the injector seal issues that plagued its predecessor. AdBlue system niggles are its only real demand.”

Who it's for: buyers who want genuine diesel efficiency without the OM608's compromises.

Best Petrol Overall

M260.920 (CLA 250, 224hp)

“Mercedes' 2.0‑litre turbo four — smooth, responsive, and fundamentally robust. Delivers 224hp with genuine everyday usability, and shares its architecture with the AMG 35 for proven durability.”

Who it's for: buyers who want everyday performance without the AMG premium.

Highest Risk

M282.914 (CLA 180/200, 136–163hp)

“The Renault‑developed 1.3‑litre turbo is the most contentious engine in the range — occasional oil consumption and timing chain concerns have been reported, and it lacks the refinement of the 2.0‑litre M260.”

Who it's for: buyers on a tight budget who prioritise running costs over driving experience.

Most Expensive Failure

M139.980 (AMG CLA 45 S, 421hp)

“The most powerful four‑cylinder production engine in the world. High‑strung design and tight engine bay packaging make even sensor replacement labour‑intensive — and a full recon is a five‑figure bill.”

Who it's for: AMG buyers with deep pockets and a trusted specialist.

Best Value

OM654.920 (CLA 200 d, 150hp)

“The entry‑point to the proven OM654 diesel family. 150hp and 400Nm deliver strong real‑world performance, and the engine shares its robust design with the 220 d — just with lower running costs.”

Who it's for: buyers who want diesel economy without the higher purchase price of the 220 d.

Most Overlooked

M260.920 (AMG CLA 35, 306hp)

“The 35 sits in a sweet spot between the 250 and the full‑fat 45 — 306hp, 4MATIC, and the same M260 architecture that underpins the non‑AMG cars. Lower running costs than the 45, and more accessible maintenance.”

Who it's for: buyers who want AMG performance without the 45's maintenance premium.

Best Diesel Overall

OM654.920 (CLA 220 d, 190hp)

“The modern 2.0‑litre diesel that replaced the ageing OM651. Excellent fuel economy, strong torque (400Nm), and none of the injector seal issues that plagued its predecessor. AdBlue system niggles are its only real demand.”

Who it's for: buyers who want genuine diesel efficiency without the OM608's compromises.

Best Petrol Overall

M260.920 (CLA 250, 224hp)

“Mercedes' 2.0‑litre turbo four — smooth, responsive, and fundamentally robust. Delivers 224hp with genuine everyday usability, and shares its architecture with the AMG 35 for proven durability.”

Who it's for: buyers who want everyday performance without the AMG premium.

Highest Risk

M282.914 (CLA 180/200, 136–163hp)

“The Renault‑developed 1.3‑litre turbo is the most contentious engine in the range — occasional oil consumption and timing chain concerns have been reported, and it lacks the refinement of the 2.0‑litre M260.”

Who it's for: buyers on a tight budget who prioritise running costs over driving experience.

Most Expensive Failure

M139.980 (AMG CLA 45 S, 421hp)

“The most powerful four‑cylinder production engine in the world. High‑strung design and tight engine bay packaging make even sensor replacement labour‑intensive — and a full recon is a five‑figure bill.”

Who it's for: AMG buyers with deep pockets and a trusted specialist.

Best Value

OM654.920 (CLA 200 d, 150hp)

“The entry‑point to the proven OM654 diesel family. 150hp and 400Nm deliver strong real‑world performance, and the engine shares its robust design with the 220 d — just with lower running costs.”

Who it's for: buyers who want diesel economy without the higher purchase price of the 220 d.

Most Overlooked

M260.920 (AMG CLA 35, 306hp)

“The 35 sits in a sweet spot between the 250 and the full‑fat 45 — 306hp, 4MATIC, and the same M260 architecture that underpins the non‑AMG cars. Lower running costs than the 45, and more accessible maintenance.”

Who it's for: buyers who want AMG performance without the 45's maintenance premium.

Mercedes‑Benz CLA‑Class X118 — Ownership Economics

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

M282.914 (136hp)40k–80kOil consumption, timing chain£600–£1,200£1,800–£3,200

Entry‑Level — budget for potential oil use

M282.914 (163hp)40k–80kOil consumption, timing chain£600–£1,200£1,800–£3,200

Entry‑Level — same engine, more power

M260.920 (224hp)50k–90kTiming chain stretch£800–£1,500£2,000–£3,800

Sweet Spot — proven 2.0‑litre turbo

M260.920 (306hp)40k–80kTiming chain, cooling system£1,000–£2,000£3,500–£6,000

AMG‑Lite — more power, more cost

M139.980 (387hp)30k–60kSensor misfires, cooling£1,500–£3,000£5,000–£8,500

High‑Strung — maintenance budget required

M139.980 (421hp)30k–60kSensor misfires, cooling£1,500–£3,500£5,500–£9,000

Most Expensive — five‑figure recon risk

OM608.915 (116hp)60k–100kDPF clogging, EGR£400–£1,000£1,500–£2,800

Entry Diesel — cheap to run, basic performance

OM654.920 (150hp)80k–120kAdBlue system, EGR cooler£500–£1,500£3,000–£5,000

Solid Diesel — proven modern unit

OM654.920 (190hp)80k–120kAdBlue system, EGR cooler£500–£1,500£3,000–£5,000

Best Diesel — strong torque, same costs

M282.914 PHEV (218hp)30k–60kBattery degradation, charging£500–£1,500£2,500–£4,500

Hybrid Compromise — complex but economical

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

M282.914 (136hp)40k–80kOil consumption, timing chain£600–£1,200£1,800–£3,200

Entry‑Level — budget for potential oil use

M282.914 (163hp)40k–80kOil consumption, timing chain£600–£1,200£1,800–£3,200

Entry‑Level — same engine, more power

M260.920 (224hp)50k–90kTiming chain stretch£800–£1,500£2,000–£3,800

Sweet Spot — proven 2.0‑litre turbo

M260.920 (306hp)40k–80kTiming chain, cooling system£1,000–£2,000£3,500–£6,000

AMG‑Lite — more power, more cost

M139.980 (387hp)30k–60kSensor misfires, cooling£1,500–£3,000£5,000–£8,500

High‑Strung — maintenance budget required

M139.980 (421hp)30k–60kSensor misfires, cooling£1,500–£3,500£5,500–£9,000

Most Expensive — five‑figure recon risk

OM608.915 (116hp)60k–100kDPF clogging, EGR£400–£1,000£1,500–£2,800

Entry Diesel — cheap to run, basic performance

OM654.920 (150hp)80k–120kAdBlue system, EGR cooler£500–£1,500£3,000–£5,000

Solid Diesel — proven modern unit

OM654.920 (190hp)80k–120kAdBlue system, EGR cooler£500–£1,500£3,000–£5,000

Best Diesel — strong torque, same costs

M282.914 PHEV (218hp)30k–60kBattery degradation, charging£500–£1,500£2,500–£4,500

Hybrid Compromise — complex but economical

The X118 rule

A £3,000–£5,000 OM654 recon against a £15,000–£25,000 X118 sits at 12–33% of the car's value — well inside the 70% Mercedes‑Benz threshold. Against a £10,000 high‑mileage example, the same recon reaches 30–50% — still viable, but a significant proportion of the car's residual value. Value the car and its service history first.

Common Problems

01

M282

1.3‑litre Turbo Oil Consumption

Affected models:

X118 CLA 180, CLA 200 (all M282.914).

Typical failure mileage:

40,000–80,000 miles.

Root cause:

The Renault‑developed M282 engine can suffer from piston ring wear leading to increased oil consumption — some owners report needing a litre of oil between services. Timing chain stretch is also reported on higher‑mileage examples.

Tiered Cost Table

Our Recommendation

Monitor oil levels regularly — a £600–£1,200 preventative inspection is far cheaper than the £2,500–£4,000 replacement that follows oil starvation.

Compare M282 engine prices for your X118

02

OM654

AdBlue System Failure

Affected models:

X118 CLA 200 d, CLA 220 d (all OM654.920).

Typical failure mileage:

80,000–120,000 miles.

Root cause:

The AdBlue system's NOx sensors, heater elements, and dosing valves can fail — leading to countdown warnings that prevent the car from restarting.

Tiered Cost Table

Our Recommendation

A £500–£1,500 AdBlue system service is non‑negotiable on the OM654 — the countdown warnings give you limited mileage before the car won't restart.

Compare OM654 engine prices for your X118

03

M260

Timing Chain Stretch

Affected models:

X118 CLA 250, AMG CLA 35 (all M260.920).

Typical failure mileage:

50,000–90,000 miles.

Root cause:

The 2.0‑litre turbo's timing chain can stretch over time, particularly on engines with extended service intervals — a rattle on cold start is the classic early warning.

Tiered Cost Table

Our Recommendation

At the first sign of cold‑start rattle, get the chain inspected immediately — an £800–£1,500 preventative repair is far cheaper than the £3,000–£4,500 replacement that follows if ignored.

Compare M260 engine prices for your X118

04

M139

High‑Strung Nature / Sensor Misfires

Affected models:

X118 AMG CLA 45, CLA 45 S (all M139.980).

M139 High‑Strung Nature / Sensor Misfires

Typical failure mileage:

30,000–60,000 miles.

Root cause:

The most powerful four‑cylinder production engine in the world is a high‑strung design — tight engine bay packaging makes even sensor replacement labour‑intensive, and misfire issues can be expensive to diagnose.

Tiered Cost Table

Our Recommendation

On a £25,000–£40,000 AMG CLA 45 S, a £1,500–£3,000 sensor diagnosis is cheap insurance — it protects the £7,000–£10,000 engine that sits at the heart of the car.

Compare M139 engine prices for your AMG CLA 45

X118 Engine Replacement Costs — By Engine and Condition

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

CLA 180 (1.3T)M282.914£1,000–£1,800£1,800–£3,200£2,800–£4,5008–12 hrs

CLA 200 (1.3T)M282.914£1,000–£1,800£1,800–£3,200£2,800–£4,5008–12 hrs

CLA 250 (2.0T)M260.920£1,200–£2,200£2,000–£3,800£3,200–£5,50010–14 hrs

AMG CLA 35M260.920£2,000–£3,500£3,500–£6,000£5,000–£8,00012–16 hrs

AMG CLA 45M139.980£3,000–£5,000£5,000–£8,500£7,000–£11,00014–18 hrs

AMG CLA 45 SM139.980£3,500–£5,500£5,500–£9,000£8,000–£12,00014–18 hrs

CLA 180 d (1.5 d)OM608.915£800–£1,500£1,500–£2,800£2,500–£4,0008–12 hrs

CLA 200 d (2.0 d)OM654.920£1,800–£3,000£3,000–£5,000£4,200–£6,50010–14 hrs

CLA 220 d (2.0 d)OM654.920£1,800–£3,000£3,000–£5,000£4,200–£6,50010–14 hrs

CLA 250 e (PHEV)M282.914£1,500–£2,800£2,500–£4,500£4,000–£6,00010–14 hrs

Core Variants

Diesel Variants

CLA 180 dCLA 200 dCLA 220 d

Petrol Variants

CLA 180CLA 200CLA 250AMG CLA 35AMG CLA 45AMG CLA 45 S

Scope note: All variants listed are X118 Shooting Brake only. C118 Saloon shares most of these engines but is covered on its own Generation Page, as fitment and production years vary by body style.

Core Variants

Diesel Variants

CLA 180 dCLA 200 dCLA 220 d

Petrol Variants

CLA 180CLA 200CLA 250AMG CLA 35AMG CLA 45AMG CLA 45 S

Scope note: All variants listed are X118 Shooting Brake only. C118 Saloon shares most of these engines but is covered on its own Generation Page, as fitment and production years vary by body style.

Market Intelligence

Most Requested E90 Engines (2025)

Most Requested E90 Variants

Average E90 Replacement Cost

Most Common E90 Failures

FAQ

BMW 3 Series E90 rear three-quarter view

Why UK Mercedes‑Benz CLA‑Class X118 Owners Trust MercedesEngines.uk

Trusted X118 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real X118 owners, as part of the Engine Finders network.
Compare X118 Engine Replacement Companies
see prices, warranty terms and supply‑and‑fit options side‑by‑side before you commit.
UK Engine Replacement Services for X118
covering every variant from CLA 180 to AMG CLA 45 S, with supply‑only or full supply‑and‑fit available nationwide.

Find the best Mercedes‑Benz CLA‑Class X118 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‑Benz CLA‑Class X118 Engine Prices on EnginesMarket

Why UK Mercedes‑Benz CLA‑Class X118 Owners Trust MercedesEngines.uk

Trusted X118 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real X118 owners, as part of the Engine Finders network.
Compare X118 Engine Replacement Companies
see prices, warranty terms and supply‑and‑fit options side‑by‑side before you commit.
UK Engine Replacement Services for X118
covering every variant from CLA 180 to AMG CLA 45 S, with supply‑only or full supply‑and‑fit available nationwide.

Find the best Mercedes‑Benz CLA‑Class X118 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‑Benz CLA‑Class X118 Engine Prices on EnginesMarket

Mercedes‑Benz CLA‑Class X118 Engines — The Complete UK Guide

Mercedes‑Benz CLA‑Class X118 Engine Codes — The Complete Database

Mercedes‑Benz CLA‑Class X118 — Overview

Mercedes‑Benz CLA‑Class X118 — Overview

Best & Worst Engines

Mercedes‑Benz CLA‑Class X118 — Ownership Economics

Common Problems

X118 Engine Replacement Costs — By Engine and Condition

Core Variants

Core Variants

Market Intelligence

FAQ

Why UK Mercedes‑Benz CLA‑Class X118 Owners Trust MercedesEngines.uk

Why UK Mercedes‑Benz CLA‑Class X118 Owners Trust MercedesEngines.uk