Key stuck in ignition
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Joined: Mar 2022
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Key stuck in ignition
2015 q7 TDI. Did some googling, and have seen a multitude of things that could be wrong. Dealer I bought it from actually just replaced the ignition switch before I bought it. They advised me not to use the key as its push button start. At the time I didn't think much into it, as I planned and have been using the push button anyway. I took it to a window tinting place today, and they used the key which is unfortunately stuck.
Cars scheduled for service Monday. Things I've found/tried. Also I haven't purchase a VCDS tool
I've seen that the battery being low can cause this. Previously noticed that pushing the start button didn't always start the car right away. Sometimes I had to hold the button. Not sure if this is an attribute of the glow plug/diesel. Otherwise haven't noticed any obvious issues with the battery.
Saw there's supposed to be a small button located on the ignition switch, depressing this button should release the key. I do not have this little button.
Found this article direct from this website:
https://www.audiworld.com/how-tos/a/...gnition-423867
Anything I've missed?
Cars scheduled for service Monday. Things I've found/tried. Also I haven't purchase a VCDS tool
I've seen that the battery being low can cause this. Previously noticed that pushing the start button didn't always start the car right away. Sometimes I had to hold the button. Not sure if this is an attribute of the glow plug/diesel. Otherwise haven't noticed any obvious issues with the battery.
Saw there's supposed to be a small button located on the ignition switch, depressing this button should release the key. I do not have this little button.
Found this article direct from this website:
https://www.audiworld.com/how-tos/a/...gnition-423867
Anything I've missed?
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From: USA - NM
Key-In Ignition VS. Start Button
Related to push-button starting on TDI engines...the push-button switch has two positions on it, similar to inserting the key manually. A soft press to first position turns system power on, but will not start car...it also evaluates cars engine/coolant temps and activates the glow plugs to preheat the cylinders for the compression ignition (TDI) to light off quickly, like it should. Pushing past the first position/detent is same as turning key to start position. You don't have to hold the key or the start button for this car to start once you've engaged the start sequence.
Again, on a TDI, there is generally a short pause prior to the engine starter engaging when the engine is cold, as the ECU is verifying the cylinders are preheated by the glow plugs and that the fuel pressure required is sufficient at the fuel rail. It's a compression ignition based engine, so it's all about the pressure/temperature required to ignite the fuel spontaneously, and the high pressure fuel pump (HPFP)/injectors...no spark plugs or ignition coils exist in this car. When the TDI engine is warm, the starter will crank over almost immediately, just like any other vehicle.
Again, on a TDI, there is generally a short pause prior to the engine starter engaging when the engine is cold, as the ECU is verifying the cylinders are preheated by the glow plugs and that the fuel pressure required is sufficient at the fuel rail. It's a compression ignition based engine, so it's all about the pressure/temperature required to ignite the fuel spontaneously, and the high pressure fuel pump (HPFP)/injectors...no spark plugs or ignition coils exist in this car. When the TDI engine is warm, the starter will crank over almost immediately, just like any other vehicle.
Last edited by '10Q7TDI_Prestige'; May 10, 2022 at 09:24 AM. Reason: data
Thread Starter
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Joined: Mar 2022
Posts: 117
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Related to push-button starting on TDI engines...the push-button switch has two positions on it, similar to inserting the key manually. A soft press to first position turns system power on, but will not start car...it also evaluates cars engine/coolant temps and activates the glow plugs to preheat the cylinders for the compression ignition (TDI) to light off quickly, like it should. Pushing past the first position/detent is same as turning key to start position. You don't have to hold the key or the start button for this car to start once you've engaged the start sequence.
Again, on a TDI, there is generally a short pause prior to the engine starter engaging when the engine is cold, as the ECU is verifying the cylinders are preheated by the glow plugs and that the fuel pressure required is sufficient at the fuel rail. It's a compression ignition based engine, so it's all about the pressure/temperature required to ignite the fuel spontaneously, and the high pressure fuel pump (HPFP)/injectors...no spark plugs or ignition coils exist in this car. When the TDI engine is warm, the starter will crank over almost immediately, just like any other vehicle.
Again, on a TDI, there is generally a short pause prior to the engine starter engaging when the engine is cold, as the ECU is verifying the cylinders are preheated by the glow plugs and that the fuel pressure required is sufficient at the fuel rail. It's a compression ignition based engine, so it's all about the pressure/temperature required to ignite the fuel spontaneously, and the high pressure fuel pump (HPFP)/injectors...no spark plugs or ignition coils exist in this car. When the TDI engine is warm, the starter will crank over almost immediately, just like any other vehicle.
Good info, I did notice the soft press without brake pedal turns on accessories. Maybe I've just not pressed the button past that point on the times I've noticed lag in starting. I had a slight feeling that might be the case with the Diesel engine(my first experience with Diesel).
Regarding the rest. Dealer is replacing the ignition switch again, as well as ordering 2 new keys and replacing the battery. Battery died 3 times because the car never fully turned off. The dealership I purchased from is stepping up and covering the costs. I guess when they initially had the ignition switch replaced. The mechanic noted there was an issue with the key, cut slightly wrong or something. Specifically telling them not to give to customer. Well that was lost in translation at some point.
From what I've gathered the ignition switch held onto the key as a security measure. Anti Theft.
Thread Starter
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Joined: Mar 2022
Posts: 117
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Wow. I have an update. So I haven't heard anything from the dealer, even after multiple attempts to call. I Decided to show up with the intent to raise hell. I kept it very respectful, but I did call them out. You quoted me 5-7 days, its been over 21 business days now. With not a single update.
Advisor let me know that it wasn't the ignition switch, it was the transmission interlock which they fixed. But now the "new" keys are cut a little wrong or something. So they're re-ordering new keys again.
Not gonna blast out the dealership or my advisor but to say I'm disappointed is an understatement. Why the advisor blatantly ignored me, and never updated me when things changed is beyond my comprehension. The circumstances were a little out of the normal with my selling dealership covering the costs of the repair, but honestly it's your job. Shouldn't be the difficult. Dealerships deal with other dealerships regularly. I shouldn't be punished as the customer.
Advisor let me know that it wasn't the ignition switch, it was the transmission interlock which they fixed. But now the "new" keys are cut a little wrong or something. So they're re-ordering new keys again.
Not gonna blast out the dealership or my advisor but to say I'm disappointed is an understatement. Why the advisor blatantly ignored me, and never updated me when things changed is beyond my comprehension. The circumstances were a little out of the normal with my selling dealership covering the costs of the repair, but honestly it's your job. Shouldn't be the difficult. Dealerships deal with other dealerships regularly. I shouldn't be punished as the customer.
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