Questions tagged [s5]

8 questions
5
votes
1 answer

How to determine component causing overheating?

Car: 2008 Audi S5 4.2L Background: Fan has been working very hard for the last 3-4 months (albeit it was summer, but even on cooler nights it was on max), temperature on dash dial steady in the middle. Recently (last 2 weeks), radiator fan stays on…
tgun926
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5
votes
1 answer

Ticking noise which gets faster at idle and slows after blipping

Car: Audi S5 2008 V8 4.2L Transmission: Manual Symptoms: There is a quiet (but noticable) ticking noise which can be heard from inside the cabin when the car starts. It starts of slow (maybe 10 clicks/sec) and starts getting faster and faster (maybe…
tgun926
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4
votes
1 answer

Can improper coolant concentration increase coolant temperature?

Car: Audi S5 4.2L Lately I've noticed my radiator fans (both of them) running like a jet engine quite frequently (but not always, the speed varies). My coolant temp. reads around 110C via OBDII after properly warmed up, but the gauge on the dash is…
tgun926
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4
votes
3 answers

Why is my car hard to start only after a few hours?

Car: Audi S5 V8 FSI, Direct Injection I posted a question related to this but might not be the correct issue: Do injectors leak or injector seals leak? Background 2 months ago (1200 km) I performed a manual carbon clean of the intake ports to remove…
tgun926
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4
votes
1 answer

Do injectors leak or injector seals leak?

Car: Audi S5 2008 I have a problem in my car where sometimes my car will be hard to start after driven for a while. Normally if I floor it close to where I stop the car, it's harder to start. When I took off the inlet air hose, I could smell petrol…
tgun926
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3
votes
1 answer

Tell tale signs of a valve cover leak?

Car: 2008 Audi S5 4.2L I found an oil leak at the bottom of my car near the engine/trans, which lead me to believe the rear main seal. However, one mechanic told me it was the timing cover gasket, while another told me it's the valve cover gasket. I…
tgun926
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2
votes
2 answers

Is it bad to continuously turn cruise control on and off?

My car is an Audi S5 which has the normal cruise control (non-adaptive) with auto braking (applies brakes when going downhill too fast). For some reason when engine braking the car uses around 4L/100KM instantaneous petrol. If I disengage cruise…
tgun926
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0
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0 answers

Audi 2012 S5 starter problem

Reading some articles here, it sounds like my Audi PGM fi relay is faulty, car has intermittent starting problem. after driving for a while and leaving the car for an hour or so when I get back engine cranks but no start, come back in 30 minutes…
Greg
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