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I know plenty of threads on oil temperature, just wanted to check, on local driving with lot of traffic with average start stop and 15 mph with lot of stationary traffic for about 30 mins does the oil temperature on the dash goes to between 105 and 110 c ? Outside temperature is around 20 c ?

I would say that's a little on the high side and 100-105 is where it should be, how old is the oil and is the level half way up the dipstick marker?

as Sam said, that is a little hot, mine would be 95-100 in the same sort of scenario

Pretty sure mine went that high sitting in london traffic.

MikeFish wrote:Pretty sure mine went that high sitting in london traffic.

Thanks for all the posts, actually first leg is 70mph on the motorway for 20 miles and engine temperature at 93 to 96c and then London traffic, specially North circular stop start then it goes up to 108 by the time I reach home.

Oil is changed few weeks back fully synthetic 5w30 and dip stick is right up to just under the max mark.

I guess nothing to worry?

Mine was reaching 110 degrees easy in london traffic. Don't drive through it during rush hour anymore but I assume it would be the same still if I did. Not had any problems with it.

The highest temperature I've seen mine rise to is just above 100⁰C stuck in traffic, haven't driven it through the summer yet though so will probably rise a little then.

Are you running the OEM oil cooler or Forge's?

Late 90,s for me. Sometimes hits the 100 or just over.

In traffic after a long run I've sometimes seen up to 105, hottest I've ever seen is 112 when climbing a long steep hill at altitude in summer in southern France.

Sounds a bit high even stuck in traffic. i'm sure i don't see more than 105 in those kinda situations and even then only briefly..

Highest i've seen on track though was 122 momentarily before it pulled itself together and dropped back to the teens! Had me worried for a second!

Mines highest was 108 the other day. Sounds like yours has a little issue :/

It does depend on where - for example, take the m1 straight into London. You can be happily be doing 70 and then within a short distance of the end of te motorway you can be in gridlock. At 70 there is a huge amount of cooling air and the coolant passes through the system pretty quickly too so you don't notice things. however when this is suddenly shut off there is still a large amount of heat in the system with no airflow and bare minimum coolant speed so you will get a massive temp spike.
However it should return to to normal temps until the system get saturated.

What does the coolant age do in all this?

Oil age as above is a big factor too

To be honest 108c isn't terrible... Some cars run at that as normal.

adsgreen wrote:Oil age as above is a big factor too.

+1

Over nearly 8 years of RS4 ownership I've noticed that when the oil gets over 5000 miles "old" the temperatures are a few degrees higher under all conditions and oil consumption noticeably increases (in my case from nearly zero to around 0.5 litre per thousand miles).

Spot on !

Plus wee bit from the oil cooler pipes, quick tip if the front grill left bottom if you find two pipes black colour then may be 0.02% leakage as well they should be nice silver colour as new!