Wasted words I am afraid, Richard. Neil has not returned to the forum since his message of 13th July.

To be fair to Halfords, it’s a pretty niche question. RS4 exhaust tips are funnily enough stainless steel, but painted. Normal wear and tear, you are going to get pitting, tar spots, etc. Tar spots are easily removed with petrol on damp microfibre. Pitting and scratches, use a very fine wire wool, #0000 with warm water and mild detergent. All you are doing is prepping. Degrease with rubbing alcohol. Next stage is to mask off and use high temperature VHT primer, followed by matte black paint.

Hi could be an auxiliary water pump they use these to circulate the water if the weather is hot after the engine is stopped it prevents cooking the cylinder head, by the looks of the coolant temp it was already hot when you started the car. Steve.

Hello Neil, Would you be kind enough to return to the forum and provide the additional detail enquired about-? Regards, Gareth.

I had the BSG replaced on my 2020 RS7, and after 2 days from taking it back from the delearship i scanned it just to see if any historic errors are present, and i saw the coolant pump error. Nothing came up on my dashboard, but i still took it back to Audi because i thought they left air in the cooling system. They had it refilled, and claimed they used the correct process, but today when I started the car the error came back. Still nothing on the dash. Has anybody had anything similar? I'm going back to Audi tomorrow.