The 2.0 d (Mercedes OM654) engine was fitted to the Mercedes-Benz GLC (X253) (2015–2022). In the EU that is 24.3 % of all new cars of this generation.
Versions: 2.0 194 hp, 2.0 245 hp, 2.0 163 hp.
The most expensive known risk is exhaust-side roller rocker arms wear (ticking, rough idle): it usually appears at 60,000–250,000 km and costs €1,500–3,000 to fix.
Engine faults ✓ Checked against sources (10/2026)
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
AdBlue / SCR faults: NOx sensor, AdBlue pump or heater, dosing valve
usually 60,000–180,000 km · Medium risk
Signs: AdBlue or emissions warning with a countdown in km; if ignored, the engine will not restart; NOx sensor codes, sometimes limp mode
Fix: Read the codes at once; check for Mercedes SCR software updates, then test and replace the faulty NOx sensor, pump / heater or dosing valve
€300–1,200
DPF clogging from short trips
usually 60,000–200,000 km · Medium risk
Signs: DPF warning, frequent or interrupted regenerations, reduced power
Fix: Drive longer runs or run a forced regeneration; check the pressure sensor and EGR first; clean or replace the filter if ash-loaded; use MB 229.52 / 229.71 oil
€150–2,000
EGR valve and cooler sooting (low-pressure EGR on early engines)
usually 80,000–200,000 km · Medium risk
Signs: Rough idle, power loss, EGR fault codes (P0400 range), regenerations do not finish
Fix: Check EGR position and flow in live data; clean or replace the valve, and the cooler if it is blocked or leaking
€300–1,200
Timing drive rattle on cold start (early engines, to 2019)
usually 60,000–200,000 km · Medium risk
model years 2016–2019 only
Signs: Rattle or knock for a few seconds after a cold start, sometimes camshaft timing codes
Fix: Have a Mercedes specialist check the sprocket vibration damper, tensioner and chain against current repair info and software; keep oil changes on time
€500–2,000
Exhaust-side roller rocker arms wear (ticking, rough idle)
usually 60,000–250,000 km · Medium risk
Signs: Dull ticking or plopping noise from the top of the engine, rough idle
Fix: Inspect rockers and cam lobes; replace all roller rockers and lash adjusters, and the camshaft housing if the cams are marked
€1,500–3,000
Gearboxes
5G / 7G / 9G-Tronic
7G-Tronic conductor plate / speed sensor failure (limp mode)
usually 100,000–250,000 km · High risk
model years 2003–2018 only
Signs: Holds a gear too long then shifts hard, sticks in gear or limp mode, converter lock-up stops working; codes 0717 / 0718 / 0722 / 2201
Fix: Confirm with Mercedes-level diagnostics; replace or rebuild the conductor plate (with the valve body on early VGS1 units), change the fluid with the correct MB spec and code / adapt the unit
€700–2,500
9G-Tronic mechatronic / pressure sensor fault (no reverse, limp mode)
usually 60,000–200,000 km · High risk
model years 2014–2027 only
Signs: Harsh shifts when warm, drops from D to N at stops, starts in 3rd, reverse will not engage, 'F' on the dash; codes P073E00, P07B700
Fix: Read the codes and fluid condition; repair / rebuild the mechatronic (pressure sensors) or replace it, then change the fluid and run the adaptations
€800–3,000
Service plan for this engine
Typical routine maintenance cost for 100,000 km: €2,650–6,350. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Mercedes-Benz GLC (X253) with the 2.0 d (Mercedes OM654) engine. The app gives the exact plan for your mileage.
Versions of this engine in the Mercedes-Benz GLC (X253)
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (64). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Steering SRPC2512 - Bolting of Steering Coupling08/09/2025 · R/2025/333
- Fire risk SRPC2419 Misfire Detection M26404/12/2024 · R/2024/474
- Doors / locks / lids On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.07/02/2024 · R/2024/024
- Other The socket for the towing device in the front crossmember might not meet specifications10/11/2023 · R/2023/291
- Gearbox On affected vehicles the length of the transmission wiring harness might not meet specifications.03/11/2023 · R/2023/226
- Fuel system On affected vehicles the fuel pump impeller might not meet specifications and may deform.29/08/2023 · R/2023/223
- Other On affected vehicles the stabilisation of the footwell cover in the area of the accelerator pedal might be insufficient.21/06/2023 · R/2023/162
- Steering On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.20/02/2023 · R/2023/023
Common questions
What are the biggest risks of the Mercedes-Benz GLC (X253) with the 2.0 d (Mercedes OM654) engine?
The faults with the highest risk: exhaust-side roller rocker arms wear (ticking, rough idle) (60,000–250,000 km, €1,500–3,000); DPF clogging from short trips (60,000–200,000 km, €150–2,000); adBlue / SCR faults: NOx sensor, AdBlue pump or heater, dosing valve (60,000–180,000 km, €300–1,200); EGR valve and cooler sooting (low-pressure EGR on early engines) (80,000–200,000 km, €300–1,200).
Does the Mercedes-Benz GLC (X253) 2.0 d (Mercedes OM654) have a timing belt or a chain?
Chain.
Which oil does the Mercedes-Benz GLC (X253) 2.0 d (Mercedes OM654) need?
0W-20 / 5W-30 · MB 229.52 / 229.71 · ~6.5 L · every 15,000 km.
Sources and notes
Main sources for the faults of this engine:
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles. How we check the data →
Updated 29/10/2026