Hi there, 

 

I've searched high and low for answer to this, but no luck so here goes... 

 

Had my aircon regased and they said there was a fault with the high pressure sensor located just below the left headlight whilst looking at the engine bay. I was hoping to do this job myself instead of the garage charging me £100 for the privilege. 

 

I've located the sensor but can't get to it really, I've got the shortest 17mm spanner I can find and got it onto the location to unscrew it but at best I Coul only move the spanner a couple of mm at a time. Am I missing something? Any tips on how to get it out? 

 

I feel like some of the sensors have are able to be undone from above with a socket. But mine you have to be underneath where the sensor is located. 

 

Even if I had the under tray off I'm not sure it would help much, there just seems to be pipes where you'd get in to disconnect it? 

 

Help! 😭

Crow's foot wrench, with long extension(s)?

16 minutes ago, Revellbikes said:

Had my aircon regased and they said there was a fault with the high pressure sensor

Whilst it is known to be problematic as a result of corrosion from water laying on the sensor your appears to be a later inverted version, I would not trust the aircon persons diagnosis, unless they could interrogate the climatronic controller for fault codes they are likely guessing at the fault.

 

That said the pressure sensor is the cheapest and easiest to replace and will not leak out refrigerant so is a good starting point but if you have access to VCDS or equivalent use that before wasting any time or money.

 

Mine removed from the top and had as little clearance (you dont say what engine you have) but I managed it with a slightly longer spanner than yours by making use of the asymmetry offset.

Thanks both for your comments. 

 

It's a 1.9tdi estate (2008)

 

The garage had it on their diagnostics machine and did me a print out aswell which confirmed the sensor was the fault. 

 

Just looking into these Crows Feet spanners. Literally a tool for everything 🤣

 

I bet they changed the design of them at some point because you need sparrows feet for hands to get anywhere near it

If all else fails, engine out job I think

Disconnect the wiring plug first and angle the spanner downwards and/or flip it for a better turn otherwise try a deep socket and extension.

Edited 24 August, 20223 yr by MicMac

Yeh I disconnected the clip in the hope I'd find the means to remove the thing. Photos were just for demonstration purposes on this post to show where the area is I need to access, I.e underneath the sensor. 

 

I've got some crows feet arriving today, so will report back on progress!

 

Thanks again