May I ask some advice please ?

I'm 6 weeks into ownership of a 2026 S5 Avant and I am mightily pleased with it.

It is my first car with a Heads Up Display and it is impressive , showing speed limits and warnings, driver assistance stuff, navigation if on and media info if on.

A week or so ago, I noticed that it was also now showing oil temperature. The icon comes on immediatley the car is started and only starts displaying temps when the engine starts to warm up. Also there is no problem with the temp as after a few miles with engine fuly warmed, it indicates the usual optimum temps of between 90 and 100 . So not a warning in any way.

Martin Innes from the Q3 website has been very helpful and thinks it boils down to one of two things.

One , the hud will automatically surface the oil temp in the readout if the car thinks the engine isnt reaching normal temp fast enough. So, oil temp is out of sync with coolant temp.

Or, two, a software update has changed the HUD behaviour. without informing the owners.

I'd had a twin channel dash cam fitted just before this started and I presume that the battery would have been disconnected by TTW Installation of Nottingham when they also installed a Cellink Battey pack. Would that have reset the HUD settings ?

I've tried to reset the settings myself via the MMI but there isnt any mention at all of an oil temp facility. Switched off and on but the oil temp icon is still there !

Please dont get me wrong. I'm quite happy to see the oil temp displayed in the HUD as it's very useful and informative but I just thouigt I would ask if anyone has any ideas that this might be flagging a problem

Manythanks in advance

Frank

Saw an OTA update take place about 4 weeks ago, and since then there have been a couple of things I've noticed that I can't recall seeing before, so an update is defo a possibility. Never seen oil displayed on my HUD tho.

If it was some warning it would be stored in messages. Is the yellow warning bell displayed on the centre screen? Have you checked the oil level? ( you can do this via menu system ).

Hiya Ron

Many thanks for the response.

No warning in messages , no yellow warning bell and oil lever reads fine.

Weird eh ?

Prob need someone with a 2026 model to comment. The 2025MY software fix is due out in July. I hope Audi gives us more that a HUD oil temp readout 😄

Just an update on my HUD new oil temp icon

I got in touch with the Service Manage of the supplying Audi dealership and after a bit of investigation he thinks that Audi performed a small software update which enabled the oil temp to be shown in the HUD. This was done without any notification to UK Dealerships ! Make of that what you will.

So, if true, it looks as though it was connected to the new RS5 being made available to all European markets and supposedly all new RS5's have this feature. As well as all 2026 S5's. It was not updated on any A5's that have a HUD. Not sure whether that a HUD is a standard feature or an extra.

If anyone here has a 2026 S5 or is fortunate enough to have taken delivery of a new RS5, if it's possible to check and confirm I would be interested.

Many thanks