Starting issue. 2012 Tiguan

[Howjen]

Most mornings, first start, my Tiguan doesn't' imediatley respond to turning the key. Sometimes a slight delay. Other times no response then it might begin to turn over as I release the brake pedal, sometimes even as I have released the key.
It seems to me that it starts using the start stop system and not the normal key start. After first start all is normal.
Anyone else experiencing this and what is the fix?

[Guest001]

New battery

[Howjen]

Possibly but it turns over normally and quickly


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[Ryeman]

I'm a 'voltage' believer also.
Funny stuff happens.

[Guest001]

Possibly but it turns over normally and quickly


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Get it load tested and also get the starter solenoid checked

[tigger73]

If you haven't had the battery replaced it's about the time it will go. Wait for winter and if it's on it's way generally the colder weather will finish it off.

[Howjen]

Thanks guys. I appreciate your thoughts. While the symtons are not what I'm used to re battery failure yet I reckon you could well be right. I'll have a real good look at it. Thanks again!

[Ryeman]

Remember BMW replace them annually (my suspicion is that it fixes the J.D. Power survey problem they were having).....it its the voltage sensitive tech age now.

[Amalgam]

Hi All,

I have experienced similar problems during the past fortnight and I believe my problem to be the pre heating by the glow plugs. If I turn the ignition on without starting ie push the brake pedal for 10 seconds, the TDI starts first time. The Passat has been living out in the cold overnight recently.

[Ryeman]

If your foot is on the brake pedal it takes valuable voltage to power the brake lights.

[Umai Naa!!]

Brake lights don't get full battery voltage anyway, as they're illuminated via a PWM signal. i.e. the BCM only sends enough voltage to sufficiently illuminate them.

[Ryeman]

Brake lights don't get full battery voltage anyway, as they're illuminated via a PWM signal. i.e. the BCM only sends enough voltage to sufficiently illuminate them.

Interesting, thanks
I'm so protective of the battery in the latest vehicles I don't even have interior lights in the 'armed' mode.
My 308's radio won't go long without the engine running either.
It seems to me the under bonnet space needs to prioritise a larger battery (higher capacity) these days.......or go the expensive BMW route.

[doc_777]

Starter motor won't engage until the control unit tells it that the glow plugs have reached temp. Takes longer the colder the vehicle is.

[Amalgam]

Starter motor won't engage until the control unit tells it that the glow plugs have reached temp. Takes longer the colder the vehicle is.

I have re read my post and can see the confusion.

If I leave the ignition on without starting the car for 5-10 seconds to allow the glow plugs to reach working temps, the the engine starts first time without fuss. If try to start the car immediately, then there is a pause in the starting sequence.

My bad. I hope that this clear as mud.

[Guest001]

I have re read my post and can see the confusion.

If I leave the ignition on without starting the car for 5-10 seconds to allow the glow plugs to reach working temps, the the engine starts first time without fuss. If try to start the car immediately, then there is a pause in the starting sequence.

My bad. I hope that this clear as mud.

You have answered your own question about what to do then Havent you.

Always has been wait for the glowplug light to go out before hitting the button. Even on my 1963 Farmall tractor.