2014 1.6 TDI wont start if headlights dont adjust.

Gravy1895

Active Member
Oct 11, 2020
16
6
Having issues with a 2014 1.6tdi. If when ignition is turned on and the headlights don't auto adjust, it won't start. It puts the headlight / esp/ tyre pressure warning lights on dash. If the lights do auto level, the car starts on the button. Car never logs any faults. Can anyone advise please. Many thanks
 

Mr Pig

Active Member
Jun 17, 2015
2,628
910
I doubt the headlights are stopping the car from starting. If it fails to start it's probably not going on to the next thing in the cycle, which might be testing the headlights. I'd get a diagnostic done or buy a tool and do it yourself.
 
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Gravy1895

Active Member
Oct 11, 2020
16
6
I doubt the headlights are stopping the car from starting. If it fails to start it's probably not going on to the next thing in the cycle, which might be testing the headlights. I'd get a diagnostic done or buy a tool and do it yourself.
Thanks for the advice, the car has been plugged in. No logged faults at all. If the car doesn't start, the esp/tyre pressure/headlight warning lights illuminate. Turn it off an on again they dissappear. If the car starts, there is no lights on the dash and runs as it should. It's like the car does a self test on ignition and there is a sporadic fault.
 

Mr Pig

Active Member
Jun 17, 2015
2,628
910
It's very weird that the computer doesn't log any faults, especially when you consider the feckin useless stuff it does log! When you try to start the car, does it click or do anything at all?
 

Gravy1895

Active Member
Oct 11, 2020
16
6
It's very weird that the computer doesn't log any faults, especially when you consider the feckin useless stuff it does log! When you try to start the car, does it click or do anything at all?
If the lights don't auto align, the car doesn't do anything, apart from present the 3 warning lights. Very strange
 

MATT RILEY

Oil burner
May 9, 2004
402
74
Have a look at the voltage supply relay or the ignition switch? When you say doesn't start do you mean will not crank? or turns over and not start?
 

Gravy1895

Active Member
Oct 11, 2020
16
6
Have a look at the voltage supply relay or the ignition switch? When you say doesn't start do you mean will not crank? or turns over and not start?
It doesn't do anything mate. That's something else to check too I guess. Thanks for the reply
 

cupra14

Active Member
Aug 31, 2017
337
63
England
Which tool was used for diagnostics?

Mine's petrol but DID start (on the multiple occasions) with that error.
 

Gravy1895

Active Member
Oct 11, 2020
16
6
I can't confirm mate. It's been plugged in at a garage on multiple occasions. I think the only thing not checked is live data. What was your fault?
 

cupra14

Active Member
Aug 31, 2017
337
63
England
Headlight range control error

Changed seized sensor assembly (only need a 10mm spanner) and fixed.

I can't see why it would prevent engine start & didn't for me, not even once.
 

Gravy1895

Active Member
Oct 11, 2020
16
6
Headlight range control error

Changed seized sensor assembly (only need a 10mm spanner) and fixed.

I can't see why it would prevent engine start & didn't for me, not even once.
Maybe it's just a coincidence mate. Thanks for the help