Hello, Could anyone tell me what size and type is the fixing bolt for the crankshaft sensor on my '56 reg Fabia 1.9tdi vrs please?

A pig to get to, but I can just about get to it without removing anything else. It looks like it is approx 10mm but it has splines around the edges & I don't want to risk rounding it off by using the wrong socket. Many Thanks.

 

It might be one of these - N 10104501 

M7 x 18 12-point head. 

If so, try a 12 point 9mm socket for fit.N 10104501N 10104501 N 10104501

Hi Pete, Spot on!  Just been & tried 9mm 12 point snug fit. Many thanks. Trouble now is socket i've got is 3/8 drive & though I can slip it on, i've only got a max of 1/2" clearance to get a wrench into socket, as the oil-cooler is in the way. Unless I can fathom a way to turn the socket, it looks like a garage job as I don't feel confident enough to start dismantling oil cooler. Accessing from under the car by the way, as theres a little more room.

Carefully grind a pair of flats onto the outside of the socket so you can spanner it round? Or molegrips straight on the socket if you have a pair that'll get in there?

 

 

Thanks for the suggestions, i'll keep them in mind as may have to try. Just at the moment, i'm looking on fleabay, see if I can get a set of 1/4 drive shallow sockets, if I can, maybe i'll just get enough room for a wrench. Fingers crossed because i'd hate to have to pay the garage, when it's just for the sake of a stupidly positioned bolt!

It's probably easier to remove the oil cooler out of the way. If you can change an oil filter you can remove and refit the oil cooler.

 

You'll need the two rubber seals for the oil cooler, and some oil to replace what comes out.

 

Straight access to the crank sensor then. 

On 18/03/2022 at 11:36, Lofty said:

It's probably easier to remove the oil cooler out of the way. If you can change an oil filter you can remove and refit the oil cooler.

 

You'll need the two rubber seals for the oil cooler, and some oil to replace what comes out.

 

Straight access to the crank sensor then. 

Come off it Lofty!! Course I can change an oil filter Lol, but cooler assembly is over my head. Anyway, here is the finale. Bought a Lucas Cav sensor, took it to my local mechanic (with the car), he then rang me 1 hour later saying the sensor does not fit. Recommended he order original part, to which I agreed.

4 hours later, rang again with the news, new part also does not fit.

The Lucas sensor that I bought & the sensor that the mechanic bought were both too large in diameter. My mechanic said he was stumped & had no idea why. Next day mechanic rang and said, cars ready. Upon picking car up he explained he had talked to Skoda & it transpired that the original factory sensor is inserted in a sleeve. When he removed the sleeve/insert, the sensor slid straight in.

So, hoping the last paragraph may help someone who finds there new sensor will not fit.

Thanks to those who replied with help & suggestions.