Cold start problem Octavia I 1.9 TDI 81 kW

[elbedin]

Hi,

Have a problem with my Octavia I 1.9 TDI 81 kW when starting cold on 15 C and the problem gets worse on 0 C.

I changed my akku (Varta 74Ah Blude Dynamic), repaired starter, checheg the glowthings, everything is ok.

When the car starts, after 3 or 4th try, the big white smokecloud cames out.

Have anyone similar problems?

Please help!

[Guest]

Get it plugged into VCDS to check for any fault codes and check the timming.

[pikpilot]

Welcome. We don't have many people from Turkey.

 

I, and many others, have experienced the same issue. You may find that when the temperature is very low, say -10C, it will start easily.

 

I changed the coolant temperature sensor and this improved things but not a total solution.

After the next timing belt change (my third) the problem was gone. Talking to people I found out that most garages (inc Skoda) just change the belt. What they should do is use software such as VCDS to make a small adjustments to the timing as well. This it what had been done during after my last belt change.

 

So, first replace the coolant temp sensor with a genuine VW group green sensor. This is an easy job and the cost of the part is low. [As it is a dual sensor with one output to the dash display and the other to the ECU, you may not realise one half has failed].

 

Secondly find someone who really knows VCDS  and how to check and make fine adjustments to the timing using this software.