« Reply #1 on: 01 February 2020, 11:55 »
Welcome Marcus!
That’s a bit of an odd one.
I had a battery die on a GTI some years ago and it had a red warning come up on the MFD but this was pre AID days (pre digital dials) so it’s a possibility.
The only other time I’ve seen a red engine warning was on a car that was attempted to start the engine but a sensor plug hadn’t been connected but this also threw up a load of warning lamps in the dash display and recorded faults in the log.
Other red warnings can be if the ACC radar view or a windscreen camera are temporarily impaired.
What are the warranty repairs being done, are they electrical?

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‘25 8.5R, ‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten