Hi everyone and I hope someone can help before I go insane!

 

I bought a skoda Octavia on 55 plate 2005 its  1.9tdi with the dsg gearbox.

 

I have a couple of issues.

 

Issue 1:

 

When the car reaches normal temperature which usually sits around half on the temp gauge never seems to go higher than that it then seems that the car takes quite a bit more turning over to get the engine started. From cold first turn of the key but when warm then it takes a few times turning over to get it started.

 

I have swapped the temp sensor/sendors at a garage as that was suggested but to no avail and also fault coming up was that 3 of the glow plugs were failing so had a new set still no change, From cold brilliant seems very weird? Anything anyone can suggest. Also had a new diesel/fuel filter.

 

Issue 2:

 

ABS/ASR comes on randomly some days more than others but every day none the less. Had the car read at 2 different garages both said front right speed sensor so had it swapped but still happens and still the same fault,

 

The garage then went onto say it was abs loom had it swapped no difference. Then said it was wheel bearing had it swapped and no good then they said it was the cap on brake fluid had broken and the sensor was moving around hence the light comes on and still no good. No matter what the front right speed sensor seems to be error coming up but its been swapped twice and the garage have come to a point where they are scratching there heads.

 

Anyone have any ideas as this is now driving me crazy

 

Any help appreciated guys.

 

 

I seem to recall reading that your first problem can be caused by a failing battery. Have you had it checked? But before you spend any more money replacing components to no avail, find a specialist VAG garage with the expertise to diagnose and fix the faults. Shark Performance in Mansfield are near to you, and Unit 18 at Old Wolverton, Milton Keyes, is another I have used and would recommend.

P.S. Here is a relevant link.

http://www.briskoda.net/forums/topic/245336-hard-to-start-the-engine-when-hot-bkd-engine/

Could be other half of the speed sensor that sits in the wheel hub. More usually a problem on the rear wheels. The magnets rust and bits fall off giving the out of band signals.

Your hot starting problem is likely to be a failing battery, however it could also be caused by a worn/lazy starter motor or failing crank position sensor. 

Thanks for all the advice I am going to get a new battery tomorrow and see how I go as far as abs I got a vag tech on it he has taken 1000 miles of data off car which he is looking through and hopefully he can come up with something. would a bad battery really be ok at cold and not when hot or warm?

 

Thanks guys this is a great community

how hard is it to fix crank position sensor if that's the issue?

 

Thanks

would a bad battery really be ok at cold and not when hot or warm?

 

Yes.....the engine needs to be turned over at a certain RPM or above (200 RPM I think) when it's warm before the ECU injects any fuel. This RPM parameter does not have to be met when the car is cold.  

Thanks for all the advice I am going to get a new battery tomorrow and see how I go as far as abs I got a vag tech on it he has taken 1000 miles of data off car which he is looking through and hopefully he can come up with something. would a bad battery really be ok at cold and not when hot or warm?

Thanks guys this is a great community

in short yes. There's a safety feature that once the car is up to temperature when you try to start it the ecu won't supply fuel if the engine is turning over below a certain rpm. As above from Brook23 it's usually either the battery or the starter motor.

good luck

ha ha I've been beaten to it!

how hard is it to fix crank position sensor if that's the issue?

 

Thanks

 

I'd start with the camshaft sensor, that is what failed on my old one. Same symptoms, ok start when cold and took ages once warm. Camshaft sensor is dead easy to replace, its located just behind the upper cambelt cover. The sensor may not show any faults as it could be providing signals within range, but the signals could be all over the place causing the starting issue.

Hi guys I have now sorted hot start issue and it was the battery after all that perfect now :( Anyway still have abs issue anyone have any ideas about that at all?

 

Thanks again guys your all superstars as mechanics did not pick up on this lol

Good news about the battery fix! The answer to your ABS problem must be somewhere here too. I still think that you should get a VAG expert to diagnose and fix it rather than spend money unnecessarily chasing a cure.