Hi All, I have just had the engine (exhaust) light come on, VCDS shows it as G450 (p0472)  signal too low - intermittent, ross tech wiki shows it as 3 possibles - faulty pipes, wiring, faulty sensor, is there a common fault to start with ? it looks as though its above the DPF with pipes going to it, can anybody confirm its location ? cheers - Stuart

Faults with the G450 sensor are fairly common.

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Hi All, a quick update on this, main dealers want £61.38 which for me (and poss others) was an updated part number from 03G906051A (fitted) to 076906051A which I ordered from ukpartsdirect.com for £38.64 inc p&p and vat and it arrived the next day ! It comes with a 2yr warranty and is made in Malaysia by Sensata technologies so let's hope it fixes the problem permanently. Cheers - Stuart