32,913. Location. USA. VCDS Serial number. HC100001. Change one digit in the existing serial number. This tells the BEM that you've installed a new battery. -Uwe-. Jan 13, 2018 #3.
PPP. I got a Q7, 2008, Diesel, no pressure to start, we visually see there is slightly moving of fuel out from the High pressure pump when cranking. 1- There are some fault store like glow plug and fuel regulator. 2- Replaced the new High pressure pump and the car start as normal and power correctly. After a day drive and park for an hour then
Okay, that sounds like you got a discharged "new" battery. Regardless of reason (not charged battery or bad connections), it is symptomatic of not having sufficicent current and voltage form the batery to run the computers or start the car.
1. Weak Battery If your Q7’s engine won’t crank or cranks very slowly, then the most likely culprit is weak or dead 12v battery. Investigating more closely and doing a battery voltage test will clarify whether the starting problem is due to the battery. This generally happens if the system has too many things going on at the same time. If this occurs, you can try doing a hard reset by pressing "setup," the joystick, and upper right button simultaneously to reboot the system. Figure 1. Reset the mmi module. Button location varies according to each model.
Q7 MK 1 Discussion - Crank but no start. - Hi Everyone. I have a 2007 Q7 3.0TDI with the BUG engine. I was driving from capetown to jhb when I lost power, as if the turbo stopped boosting, after slowing down, power came back. Around 20kms further, the car cut out and wouldnt start at all.
Yes there is an explosive battery disconnect on the Q5 when in an impact accident. Dealers usually don't stock them as for local regulations pertaining to storing explosive devices. I assume that the explosive disconnect removes most "main" power as the OP stated he still had some residual powered up items.

The battery in the remote/ key doesn't power the immobilizer. The key comes in two pieces . Top part is remote with battery. Lower half is key with RFID chip (no battery). They are not electrically connected. The remote is just a remote. I have 3 keys for my TT. One of them is a master key with no remote and thus no battery. Car works fine.

For a more detailed explanation and GREAT TIPS on how to save money, please visit our blog post: Car keys replacement cost. A: In a nutshell, to replace an Audi key can cost anywhere between $200 and $1200. The price you pay depends on several factors: The type of key. The car’s year of manufacture. GTzpWU.
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    • audi q7 not starting after battery change