Air Con

Author
Discussion

runner911

Original Poster:

599 posts

244 months

Wednesday 17th January 2018
quotequote all
Can I ask for some advice please ?

As per my previous threads , I recently purchased a 2008 Continental GT with just over 20,000 miles on the clock.

The Air Con does work , but on "cold " I consider the air should be much cooler.

Searching the service history for the car I can find no reference to the system ever having been re-gassed , which could well be the issue , or at least a starting point to solve the problem.

Can anyone point me towards the re-charge valve ?

Is the re-charge procedure the same as most other cars ?




WelshBentleyBoy

339 posts

200 months

Wednesday 17th January 2018
quotequote all
Not worth fiddling with yourself, Kwik Fit do it for about £50.

Paul

runner911

Original Poster:

599 posts

244 months

Wednesday 17th January 2018
quotequote all
Paul, Thank you for your reply.

A mate runs a car radiator business , part of which includes Air Con re-gassing.

Very few Bentleys down here in Plymouth , and in fact he has never re-gassed one !

He is reluctant to start pulling anything apart , and does not know where the valves are or whether the procedure is the same for most other cars.

Any ideas ?

Fiammetta

404 posts

89 months

Wednesday 17th January 2018
quotequote all
Under the scuttle trim .
You need to go into “ service “ on the infotainment select wiper service .
14 mm socket to remove the wipers ( remember which is which as they are different )
Check some screws at the end of the trim and lift it off .
Between the engine bulkhead and car bulkhead is quite a lot .
Familiarise your self - eg fuse box n relays under passenger side ( RHD) .
AC connects are there .
As a test run it up on max cold and see if the pipes are cold 1 st ?

There also the HVAC unit - well the top 1/2 with a heater control valve - actually two one for each side .
Failure leaves it ( defaults ) open so it gets all hot and the AC components is not enough to really cool .

There’s a shed load of sensors too buried deep - a dash out job to really access the lower 1/2 of the HVAC unit .
The VAG com Dx tool can check each sensor and flap motor .

But 1 st as you say ck the gas pressure .
You need to find the correct pressure ,just pumping it up with a Halfords gas can - willy nilly = a high pressure sensor tripping off the AC pump .
Pressure has to be within a range - find that out
Anybody?

This bit the HVAC system is straight out of Audi / VW parts bin — Phaeton / A8 exact parts
So try one of them


Edited by Fiammetta on Wednesday 17th January 13:34

enjoythemusic

217 posts

145 months

Wednesday 17th January 2018
quotequote all
Refill is so very easy, just remove the plastic bit by the rear of engine bay (close to windshield under bonnet).

As a side note, it could also be the dreaded defective flap. A recirculation flap or some such seems to get stuck/broken, and why cold air is slow to deliver. Very common problem.

PS: Make sure you have automatic air recirculation on, if not turned on that could be the problem.