SEAT Workshop Service and Repair Manuals

If faults are recognised by the engine control unit, they will be indicated by switching on the exhaust gas warning lamp.

→ → Location of exhaust gas warning lamp -2-

Note:

The exhaust gas warning lamp can be switched on in the flashing or permanently on mode. The fault memory must be interrogated in every case .

• ◆ Flashing: There is a fault which can cause damage to catalyst if driven in this condition. In this case the vehicle must not be driven using full performance!
• ◆ Permanently on: There is a fault which will increase exhaust emission. Interrogate Motronic and/or automatic gearbox control units.
• ◆ If the exhaust gas warning lamp does not light up, even though there is an engine running problem, or a customer has complained, the fault memory must be interrogated, because faults which do not switch the exhaust gas warning lamp on immediately can also be stored.

Functional check:

• ‒ Switch on ignition:
      the exhaust gas warning lamp must light-up.

If the exhaust gas warning lamp does not light-up with ignition switched on:

• ‒ Renewing combi-instrument:

=> Body repairs, Interior; Repair group 70; Trims and insulation

If the exhaust gas warning lamp lights-up with ignition switched on, continue check as follows:

• ‒ Start engine and run at idling speed:
  The exhaust gas warning lamp must go out after a few seconds.

If the exhaust gas warning lamp does not go out:

• ‒ Interrogate fault memory, if necessary, repair any faults and then erase fault memory => Page 01-17, interrogating and erasing fault memory.