Bmw X1 Egr Valve Recall. Following some technical investigations bmw started a voluntary technical campaign in the european market to fix faulty egr valves on four cylinder and six cylinder diesel engines. Exhaust gas recirculation valves reduce harmful nox emissions by recycling a portion of exhaust gases into the combustion chamber reducing the high ignition temperatures associated with nox.
The car has 30k miles 50k km but dealer cannot seem to diagnose this intermittent idle issue. Since egr replacement idle continues to to intermittently rough. Following some technical investigations bmw started a voluntary technical campaign in the european market to fix faulty egr valves on four cylinder and six cylinder diesel engines.
Bmw and mini egr valve failure because egr valves deal with dirty air over time the valve can become clogged with carbon deposits that prevent it from operating properly.
While every vehicle fitted with an egr valve is at risk over the last 3 years we have seen a significant rise in the number of diesel bmw and mini owners with egr valve problems. Bmw and mini egr valve failure because egr valves deal with dirty air over time the valve can become clogged with carbon deposits that prevent it from operating properly. Exhaust gas recirculation valves reduce harmful nox emissions by recycling a portion of exhaust gases into the combustion chamber reducing the high ignition temperatures associated with nox. In 2018 bmw originally recalled 268 000 uk diesel cars after it was found that glycol leakage from the engine s exhaust gas recirculation egr cooler could result in burning soot deposits when combined with the high temperatures inside the egr system.
