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Volkswagen Golf Mk7 Owners Manual: Indicator lamp

This page covers three related Volkswagen Golf Mk7 warning states: the Electronic Power Control engine management fault lamp, the diesel glow-plug preheating symbol, and a fault in the catalytic converter itself. Each has a distinct cause and recommended action, from a routine preheating cycle to a workshop visit.

First read and observe the introductory information and safety warnings 

Lit up Possible cause Solution
Engine management system fault (Electronic Power Control). The engine should be checked by a qualified workshop as soon as possible.
Diesel engine is preheating before starting.   .
Fault in catalytic converter. Decrease speed. Drive carefully to the next qualified workshop. The engine should be checked.
Diesel particulate filter has become saturated with soot. Drive for approximately 15 minutes in 4th gear (manual gearbox) or select D (automatic gearbox) at a speed of at least 70 km/h (45 mph).
Please observe any applicable speed limits  .
If the indicator lamp still does not go out, proceed to a qualified workshop.
Flashes Possible cause Solution
Fault in engine management system (diesel engine). The engine should be checked by a qualified workshop as soon as possible.
Misfiring, which damages the catalytic converter. Decrease speed. Drive carefully to the next qualified workshop. The engine should be checked.

Several warning and indicator lamps will light up briefly as a functional check when the ignition is switched on. They will switch off after a few seconds.

WARNING

Please observe legal requirements if cleaning the diesel particulate filter when in traffic.
  • Follow driving recommendation only if visibility, weather, road and traffic conditions are suitable.
  • Do not endanger other vehicles on the road.

NOTICE

To avoid damage to your vehicle, always observe the indicator lamps and associated warning texts.

If the indicator lamps , or are lit up, fuel consumption may be higher and engine performance reduced.

    Questions & answers

    Indicator lamp — Volkswagen Golf Mk7

    What does the Golf Mk7 EPC warning lamp mean?
    Electronic Power Control — a fault in the engine management system. The engine may run in reduced-power mode. Have it checked at a workshop as soon as possible.
    Can the Golf Mk7 EPC lamp be caused by a minor issue?
    Sometimes. A loose fuel cap, a faulty sensor or a brief electrical glitch can trigger it. If the lamp goes out after restarting the engine, monitor it — if it returns, visit a workshop.
    What does the diesel glow plug symbol mean on the Golf Mk7?
    It lights up before a cold start to indicate the engine is preheating. Wait until it goes out, then crank the engine. On petrol models this symbol does not appear.
    Introduction
    This chapter contains information on the following subjects:  → Indicator lamp    → Catalytic converter    → Diesel particulate filter   Additional information and war ...

    Catalytic converter
    First read and observe the introductory information and safety warnings The catalytic converter is used for exhaust gas post-treatment and helps to reduce exhaust emissions. To help ensure long- ...

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