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Any recent updates re this vendor TDIUpgrades.com?

Ha, ha, I like your sense of humor.....BTW 2nd vehicle is an RX 350

A Yota?

Good suggestion I will look. Thanks

For budgeting purposes. If worst case on the DEF system is that the DEF pump or tha DEF heater fails then I would like to have some idea of cost.

TurboABA and ZippyNH, Thank you for your answers. I will connect my VCDS to check / monitor readings as suggested. I will also call Audi about the DEF heater / tank for a cost. Maybe a weight loss is an option to look at.

Turbo ABA, thank you for your reply. My error, the DPF (not DEF) was replaced under recall warranty "23Z8 oxygen sensor relocate via DPF replacement." I decided to do this at 175,000 km before the emissions warranty expired. The recent replacement of the NOx sensor was number 2, no indication...

2015 Q5 TDI, 200,000 KM, Emissions warranty over. Is it a matter of When not If that problems will happen with the DEF system? What type of problems can I expect and any ball park costs expected? DEF was replaced at 185,000 under warranty, NOx sensor at 189,000 km under warranty. In...

Does anyone know what size socket to use on the pressure sensor glow plug? I would like to remove it and add anti seize to the threads for any future service needed. Here is a link...

Follow up; The Viton "O" ring for the ZF8 transmission drain plug was purchased from Forces Inc , Blainville Quebec, 16mm x 20mm x 2mm- part # MOR0160020V Had to buy 6 The shop I used said the existing O ring needed replacement on the drain plug They said the O rings on the 3 differentials were...

Re your comment: Do you know if this is possible on a 2015 Q5 TDI V6?

Just had the transmission fluid and filter changed at 185,000 km, 2nd change, 1st was at 110,000 km. Also had the 3 differentials drained and refilled. I located the Viton O ring that I had changed on the transmission drain plug as well, the new plug with O ring is a ridiculous price in Canada...

2015 Q5 TDI Do the 3 differentials use a crush washer? For drain plug? For the fill plug?

Problem has not occurred again to date.

Thanks Turbo, due to travel could not get to dealer. Talked to them they said likely went into limp mode but they did not know why. They said if it happens again to bring vehicle in. They asked not to clear any codes, I did not. Had new DPF under extended warranty a few months ago, old DPF was...

What should I do? I'm driving on the highway at 100-110km for an hour, glow plug light comes on, tried to accelerate but vehicle would not speed up, I could hold speed at 90km range but just barely, this lasted about 30 minutes. Made a stop, shut down for 30 minutes and all ok after that...

How did you determine the EGR cooler was leaking? Oil test? I am using a small amount of coolant, not much.

How did you determine the EGR cooler was leaking? Oil test? I am using a small amount of coolant, not much.

Recently got this code PO133, Oxygen (Lambda) Sensor B1 S1 - Is there any risk to damage to motor or emissions if I keep driving for a while? I have a recall to replace the DPF that I will schedule in the next month and Audi can deal with this code, I assume all under emissions warranty which...

2015 Q5 TDI- The level sensor in coolant container is sending false signals indicating low level which is not accurate as level is ok. The level sensor is not a replaceable part so a new container is needed. Aftermarket container (China) is 1/3 the cost of OEM does anyone have experience with...