Post
by PoP-PoP-BANG » Sun Oct 26, 2014 8:01 pm
I had a look at the rads behind the oil cooler and they seem to all be intact, looks as if the oil cooler is just below these radiators.
I've got the oil cooler now, set me back £755 with employee "discount". It's going in to my local German specialist garage on Monday, they've worked on all of my previous cars, including my S8. I'm having the Cambelt done, water pump, alternator, spark plugs, oil, oil filter, oil cooler, air filter, full gear box service, might get them to JB weld the intercoolers too, if they're leaking. I'm terrified of the bill having already spent £755 on a single part...
Borrowed a mates diagnostics laptop, came up with 6 fault codes, none that seem too serious.
17861 - Exhaust gas temperature sensor 1; open/short circuit to plus - intermittent
17535 - Multiplicative fuel adaptation bank 1; rich mixture - intermittent
17537 - Multiplicative fuel adaptation bank 2; rich mixture - intermittent
17547 - additive fuel adaption, bank 2; rich mixture - intermittent
17545 - additive fuel adaption, bank 1; rich mixture - intermittent
18010 - +30 voltage - intermittent.
Does anyone know a site that can explain the above codes in a bit more depth? Done a bit of searching on here, looks like lambda/maf issues as well as the EGTs.
Are the EGTs the same as the Non return valves that MRC seem to always change on these cars? Or is this a different part completely? Do you think it's worth changing these valves whilst getting all of the above work done?