Octavia estate and Superb diesel. A durable engine, but at high mileage keep an eye on battery voltage - the injection control electronics are demanding.
Click a code for the full breakdown: symptoms, causes, and whether you can keep driving.
EGR Flow Insufficient
The exhaust gas recirculation valve is not flowing enough exhaust back into the intake, usually due to carbon buildup.
Turbocharger Underboost
The turbo is producing less boost pressure than the ECU requests.
Fuel Rail/System Pressure Too Low
Measured fuel pressure is below what the ECU commands - the engine may be starved of fuel under load.
Diesel Particulate Filter Efficiency Below Threshold
The DPF is not trapping soot as it should - it may be damaged, removed, or overloaded.
Glow Plug Module Control Circuit (Diesel)
The control circuit of the diesel glow plug module has a fault.
System Voltage Low
The ECU sees battery/system voltage below normal while the engine runs.
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