Hi,

 

My Octavia 1.6 mpi bfq was having troubles to start. When I was turning the key on nothing was happening. Just red light of battery goes off and until y don't remove the key and make contact again doesn't turn back again. Usually after trying few times was working.

 

Now is happening the same but no success after tons of retries. Starter was replaced, battery was checked and it's ok. When I try to start the car I hear a whistling noise that seems to come from inside the engine and it stops when I remove the key.

 

As hint I have the feeling that when is parked outside in the sun and it's warm doesn't have problems to start or starts on the second try. Problem is that I had to take it to work and I parked it in an underground garage. Even with 40 degrees outside the garage is cold. So no luck at all.

 

Any idea what could be? I'm thinking that is maybe the starter relay. But I'm searching in the forum and in Google and I can't find which relay should be and where to find the relay boxes. Can somebody bring this info? 

 

And if somebody can tell me the part number of the relay and which one is I can already order it so the next week I can rescue my car.

 

 

Thanks a lot!!

@vyllonder Have you checked the alternator control wires yet?

@Paws4Thot Not yet. What I should look for?

Edited 12 July, 20241 yr by vyllonder

7 hours ago, vyllonder said:

@Paws4Thot Not yet. What I should look for?

Firstly, does the battery light work correctly? I'm actually unclear about that.

I put the key and make contact. Battery light lights. I try to start. Battery light goes off.

 

If I remove the key and wait few minutes it's happening the same

Edited 12 July, 20241 yr by vyllonder

I got finally some time to check. The only thing I saw is that relay 100 gets warm when the contact is made but I'm not even trying to start the engine

Sounds like the starter is just spinning and not engaging the flywheel 

So seems the starter is again burned. What can be burning the starters... Some short-circuit? I checked all the fuses and all are ok.

 

Maybe another fact that can be important, before starting with all the headaches in the service they replaced my clutch. 

Any photos? Can you see damage to the wiring?

In the engine room I don't see any damage in any cable. I can't lift the car since I don't have elevator. Any specific place that I should look?

 

If you tell me what you need to see I will make the pictures 

Edited 23 July, 20241 yr by vyllonder
Typos

Just for a funny note:

 

Car was parked in the shade so it wasn't started. I reserved time with towing service and official service. Today at 8am the towing guy come. Car wasn't starting. So he towed and in the official service they parked in the sun.

 

At 2pm they called me. Car is starting so asking what they should do with the car. I told them to put it under some shade and try tomorrow. Now is really the first time I wish that my car will not start so they can see and find the mistery

 

Where I live is around 30 something degrees here