GLB200d / 220d (OM654 2.0)
2019–2024 · diesel · 1950cc · 190hp
Engine codes: OM654
Reliability, common problems and owner reviews for the Mercedes Benz GLB X247 GLB200d / 220d (OM654 2.0). Check this before you buy used.
The GLB diesels use the modern 2.0 OM654 (the engine that replaced the OM651, shared across the C/E-Class and GLC) — a refined, strong and genuinely economical unit and the engine to buy in the GLB. It's a much-improved design over the OM651 (no rear-chain-rattle reputation, stepped-bowl combustion, integrated exhaust treatment), with the standard modern-diesel cautions: DPF on short trips, EGR, AdBlue/SCR, and injector attention at high miles. Paired with 4MATIC and the 8G/7G-DCT. A motorway-driven, serviced car is a dependable long-hauler — the 220d is the pick. Buy on oil, DPF and AdBlue history.
Same engine, other cars
This is the same physical engine (OM654) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
DPF clogs and EGR soots on short trips; AdBlue/SCR system.
Fix / Workaround: Motorway regens; clean EGR; diagnose SCR.
Repair cost: €300–€1300
Typically appears after: 140,000 km
Injector attention at higher mileage; dual-clutch fluid.
Fix / Workaround: Injector test; DCT fluid service.
Repair cost: €200–€1400
Typically appears after: 170,000 km
Mileage Thresholds
After 220,000 km: Improved over OM651; high-mileage capable.
Pre-Purchase Checklist
- ☐220d is the pick
- ☐OM654 improved over OM651
- ☐Oil + DPF + AdBlue history
Frequently asked questions
Is the Mercedes Benz GLB X247 GLB200d / 220d (OM654 2.0) reliable?
Maint. Sensitive — The GLB diesels use the modern 2.0 OM654 (the engine that replaced the OM651, shared across the C/E-Class and GLC) — a refined, strong and genuinely economical unit and the engine to buy in the GLB. It's a much-improved design over the OM651 (no rear-chain-rattle reputation, stepped-bowl combustion, integrated exhaust treatment), with the standard modern-diesel cautions: DPF on short trips, EGR, AdBlue/SCR, and injector attention at high miles. Paired with 4MATIC and the 8G/7G-DCT. A motorway-driven, serviced car is a dependable long-hauler — the 220d is the pick. Buy on oil, DPF and AdBlue history.
What are the common problems and reviews for the Mercedes Benz GLB X247 GLB200d / 220d (OM654 2.0)?
The most commonly reported problems: DPF / EGR / AdBlue, Injector / DCT (high miles).
Is a used Mercedes Benz GLB X247 GLB200d / 220d (OM654 2.0) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.