Engines Market

Mercedes GLA 200 d / 220 d Specialists

Mercedes Benz GLA Class GLA 200 d / GLA 220 d Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Mercedes Benz GLA Class 200 d and 220 d engine specialists. Compare prices on reconditioned, rebuilt and used OM654 2.0-litre diesel engines - supply & fit available nationwide for both front-wheel drive and 4MATIC variants.

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Mercedes Benz GLA Class GLA 200 d / GLA 220 d Engine
from£2,500 to £6,000
  • Usedfrom £1,800
  • Reconditionedfrom £3,200
  • Common codesOM654.920
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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Mercedes Benz GLA Class GLA 200 d / GLA 220 d Engine History & Specs at a Glance

The Mercedes Benz GLA 200 d and GLA 220 d introduced the all-new OM654 2.0-litre four-cylinder diesel engine with the second-generation H247 GLA in 2020, replacing the OM651 2.1-litre diesel from the previous X156 generation with a lighter, more efficient and more refined powertrain.

Mercedes Benz GLA Class GLA 200 d / GLA 220 d
  1. 2020

    H247 GLA launched with OM654 DE20 GA 2.0L diesel, available as GLA 200 d (150hp, 320Nm) and GLA 220 d (190hp, 400Nm)

  2. 2020

    8G-DCT dual-clutch transmission introduced as standard on 200 d and 220 d variants

  3. 2020

    Euro 6d emissions compliance with AdBlue SCR system

  4. 2023

    H247 facelift, OM654 diesel engines continue unchanged with 48V mild-hybrid not applied to diesel range

Every OM654 diesel engine fitted to the Mercedes Benz GLA Class 200 d and 220 d is covered below, with UK rebuilt pricing and known failure points from real owner experience.

Engine Codes & Pricing

Mercedes Benz GLA Class 200 d / 220 d Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

OM654.920 — 2.0L Diesel (2020-present) engine

OM654.920 — 2.0L Diesel (2020-present)

Power Output
GLA 200 d: 150 hp (110 kW) @ 3,400-4,400 rpm; GLA 220 d: 190 hp (140 kW) @ 3,800 rpm
Torque
GLA 200 d: 320 Nm @ 1,400-3,200 rpm; GLA 220 d: 400 Nm @ 1,600-2,600 rpm
Displacement
1,949cc
Configuration
Inline-4, DOHC, turbocharged, common-rail direct injection (fourth generation) with piezo injectors up to 2,050 bar
Years Fitted
2020-present

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Common Problems

Mercedes Benz GLA Class 200 d / 220 d Engine Problems Repair Cost vs Replacement

The Mercedes Benz GLA 200 d and 220 d rely on the OM654 2.0-litre modular diesel - a lightweight, all-aluminium engine praised for refinement and efficiency, but not without its vulnerabilities. EGR cooler thermal cracking, AdBlue system failures, and turbocharger issues dominate replacement demand, particularly on post-2020 H247 models. Every rebuilt engine supplied through EnginesMarket includes upgraded components designed to address the original failure point - plus a minimum 12-month unlimited mileage warranty. Below we break down the most common GLA 200 d and 220 d engine failures, what they cost to fix, and when replacement is the smarter financial decision.

Common failure points and repair options

OM654 EGR Cooler Thermal Cracking

Affected
Mercedes Benz GLA Class GLA 200 d, GLA 220 d (OM654.920, 2020-present)
Typical failure mileage
40,000 - 70,000 miles
Root cause
The OM654's exhaust gas recirculation (EGR) cooler is subject to thermal cycling between exhaust gas temperatures and coolant. Differential expansion causes microscopic cracks in the cooler matrix, allowing coolant to be drawn into the intake manifold. The result is progressive coolant loss, white exhaust smoke, and eventually hydrolock if ignored.

Repair options

Repair tierDealer priceSpecialist price
Minor - EGR Cooler Replacement£1,100-£1,700£600-£950
Intermediate - Cooler Plus Intake Cleaning£1,600-£2,300£1,000-£1,500
Full Replacement - Rebuilt Engine£5,000-£7,500£2,800-£5,500
Our recommendation
On a newer GLA 200 d or 220 d, the EGR cooler replacement at a specialist (£600-£950) is a no-brainer. However, if your car has already overheated or shown misfire symptoms, pay for a borescope inspection before committing to repairs - bent rods are not always immediately obvious. Rebuilt OM654 units with upgraded EGR systems are increasingly common as these cars age out of manufacturer warranty.
-> Get quotes for OM654 EGR cooler repair and rebuilt engine options for your GLA 200 d / 220 d

OM654 AdBlue System Crystallisation

Affected
Mercedes Benz GLA Class GLA 200 d, GLA 220 d (OM654.920, 2020-present)
Typical failure mileage
30,000 - 60,000 miles
Root cause
The AdBlue/SCR system can crystallise in the dosing module if the vehicle is used predominantly for short journeys. Crystallisation blocks the injector, preventing AdBlue delivery and triggering countdown warnings that can prevent the car from starting.

Repair options

Repair tierDealer priceSpecialist price
Minor - AdBlue System Flush & Reset£400-£700£200-£400
Major - AdBlue Dosing Module Replacement£900-£1,400£500-£800
Full Replacement - Rebuilt Engine£5,000-£7,500£2,800-£5,500
Our recommendation
If your GLA 200 d or 220 d throws an AdBlue warning, address it immediately - continued driving can lead to countdown mode and vehicle immobilisation. A specialist £200-£400 flush and reset is often all that's needed if caught early. However, if the dosing module has crystallised badly, replacement at £500-£800 is the right call. Ignoring AdBlue warnings can lead to significantly more expensive repairs.
-> Get quotes for OM654 AdBlue system repair and rebuilt engine options for your GLA 200 d / 220 d

OM654 Timing Chain & Injector Issues

Affected
Mercedes Benz GLA Class GLA 200 d, GLA 220 d (OM654.920, 2020-present)
Typical failure mileage
80,000 - 120,000 miles
Root cause
While the OM654 is generally robust, owners have reported injector and timing chain issues over time. The timing chain is located at the rear of the engine - a complex and costly repair when chain stretch or tensioner failure occurs. Piezo injectors can also suffer from carbon buildup, affecting spray patterns and cold starting.

Repair options

Repair tierDealer priceSpecialist price
Minor - Injector Cleaning & Decarbonisation£400-£650£200-£350
Intermediate - Injector Replacement (1-4 Units)£900-£2,000£500-£1,200
Major - Timing Chain & Tensioner Replacement£2,500-£4,000£1,500-£2,500
Full Replacement - Rebuilt Engine£5,000-£7,500£2,800-£5,500
Our recommendation
The OM654's timing chain is generally more durable than the OM651 it replaced, but rear-chain access makes replacement labour-intensive. At the first sign of rattling on cold start, have the chain inspected immediately - ignoring it can lead to catastrophic engine failure. For injector issues, start with professional cleaning before committing to replacement; OM654 piezo injectors are expensive (£300-£500 each), so replacing all four at once on a car over 100,000 miles pushes costs towards £1,200-£2,000.
-> Compare rebuilt OM654 Mercedes Benz GLA Class 200 d / 220 d engine prices

Don't Let Engine Failure Write Off Your Mercedes Benz GLA 200 d or GLA 220 d

A failed engine doesn't have to mean the end of your GLA diesel. Whether you're dealing with an OM654 EGR cooler failure, AdBlue system issues, or timing chain wear, EnginesMarket makes it simple to compare prices from trusted UK Mercedes Benz GLA Class specialists. Every rebuilt engine in our network includes upgraded components designed to address the original failure point, a minimum 12-month unlimited mileage warranty, and nationwide delivery with supply & fit options available.

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FAQ

Mercedes Benz GLA Class 200 d / 220 d Engine ReplacementFrequently Asked Questions

Everything Mercedes Benz GLA Class GLA 200 d / GLA 220 d owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Mercedes Benz GLA Class 200 d / 220 d Engine Prices Today

Comparing quotes for your Mercedes Benz GLA Class 200 d or 220 d engine replacement is completely free and carries no obligation - enter your registration above, receive tailored prices from UK specialists who know the OM654 modular diesel engine inside out, and get back on the road with confidence. Every rebuilt engine is backed by a minimum 12-month unlimited mileage warranty.

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