So had the 2010 Octy TDi regassed at the weekend, and expecting to be given a part in the next Frozen movie, I am a little disappointed. A good local garage did it for me, but he said he couldn't hear the click from the engine as it was switched on, and, at the time, he said both fans at the front were not turning.

 

About an hour later, both fans were visibly turning, recirc was on, but still no click upon switching it on, and it appeared to go cold intermittently.

 

Ideas?

 

As a quick check, where is the relay for the system?

Edited 19 July, 20223 yr by Quinny1

Not such a good garage if they are expecting to hear a click from the aircon pump, VAG have not used clutch drive aircon pumps for close to 2 decades.

 

2 ways to diagnose the system:

1- Connect an aircon manifold guage set and compare the high and low side pressures and to the chart corrected for ambient temperature, this is by far the best way to know exactly how it is performing.

 

2 - Use VCDS, it will only tell you the high side pressure and you are never sure if its ambient or guage pressure as the info is contradictory, most of the measuring block figures are fantasy and simply calculated figures not what is actually happening, on the positive side if the system is shut down due to a fault, (usually low pressure) it will give you a shut down code which will hopefully reveal what the issue is, the downside is that if say the compressor modulating valve is sticking it will show everything working hunky dory but no cold air from the evaporator, also of the shear plate has broken and the pump is not even turning it will show fantasy figures for compressor load and RPM.

 

The guage set never lies but few people these days know how to use them since the advent of the (not) idiot proof machines made for idiots.

Thanks for the reply.

 

TBH, I didnt know that VAG hadn't used a clutch drive either, so lesson learnt for me.

 

Just need someone with VCDS near Wakefield now.

7 minutes ago, Quinny1 said:

Just need someone with VCDS near Wakefield now.

VCDS User Locations

 

Checking close to you, there are 2x people close to Ossett/Wakefield... but have not been online for almost 2 years.

I am in Huddersfield with VCDS Can-Hex, as is another user.

On 20/07/2022 at 15:28, varooom said:

VCDS User Locations

 

Checking close to you, there are 2x people close to Ossett/Wakefield... but have not been online for almost 2 years.

I am in Huddersfield with VCDS Can-Hex, as is another user.

That maybe a plan. It still isn't blowing through cool enough after a week, so it will need plugging in.

 

Got to get it mot'd in the next couple of weeks, and am away next weekend. When you free?

 

Free most days/nights