The most frequently mentioned issue when buying a used Opel Mokka 1.6d 2019: Low oil pressure / oil pump failure and rough running. Timing chain wear or breakage is also commonly reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
On the 1.6 CDTI engine (code B16DTH), oil pressure loss and oil pump failure are frequently reported. Also, brief engine shuddering or vibrations may occur in the 1,800-2,300 rpm range. Typical symptoms include low oil pressure warning, limp mode, possible fault code P06DD, and momentary jerking during acceleration.
Engine Internal
Many users in Italy and Europe report high noise and, in more serious cases, the need to replace the timing chain on 1.6 CDTI models. Symptoms range from metallic sounds to hesitation when starting; chain breakage or stretching can lead to engine damage.
Timing chain
Oil found in the intake duct and air filter indicates a turbo or oil separator fault.
Turbo
A few users report temporary engine shuddering or vibration at certain rpm ranges (e.g., ~1,800-2,300 rpm) on the Mokka/Vauxhall 1.6 CDTI. Common hypotheses include injector faults or dual-mass flywheel issues.
Engine Internal
Metallic noise or rattling from the timing chain area is reported on cold start or after long stops. The cause may be the chain tensioner (and its seal/gasket) failing to maintain oil pressure immediately after startup.
Timing chain
On diesel models, faults in the AdBlue/DEF system are reported. Dashboard warnings can lead to restrictions or a countdown that prevents engine start if unresolved. Users report costly diagnostics and, in some cases, replacement.
Exhaust Emissions
On the 1.6 CDTI engine, engine fault messages related to airflow or EGR valve and MIL warning light may appear. Symptoms include warning lights returning after EGR replacement, poor idle performance, and exhaust gas flow messages.
Exhaust Emissions
Same trim, different year
We only publish claims we can verify. Cards come from Difetti fault records matched to this vehicle on brand, fuel, engine and generation.