Had our Octy into local Skoda here as aircon suspect. It blows 'coolish' air from driver's vent but warm on passenger one. Have searched and found similar (scary) problems but would welcome some advice.

 

Results were as follows: system gassed adequately; aircon produces 2 degs C into dash - compressor ok. Driver-side vent is 12 degs C; passenger-side 24 degs C. (Outside is @ 24 degs C) Condensation starting on passenger floor. So 'something' blocking vents inside dash.

 

Estimated cost: 4 hours to remove dash & replace=@ $540 (2 remove, 2 replace) & depending what is found @ worse-case $200 more. This seems reasonable compared to some of the threads found. Scary bit is that one thread spoke about some 'diverter-motor' $1500?

 

Thinking of doing the job myself but exploding airbags a bit of a worry.

 

Any comments would be welcome. Thanks.

On 9/26/2017 at 21:47, anotherdownunder said:

Update

After trolling through posts found 2 others with similar problems and a regass fixed. One was Mike Holroyd, thanks Mike. (Please come back!) Can't remember other.

In for a regass tomorrow.

 

Another (maybe soppy question) most data I can find is LHD but found: http://www.realoem.me/Skoda/CZ/OCT/2013/663/R/8/820/820020 and question is related to config R/LH. I've reversed the image to what I think is RHD and if wrong can someone tell me as if the regass doesn't fix things I'll start exploring beneath the dash.

 

Thanks to Mike & anotherdownunder.

Had aircon regassed today. Works well. There was 80 g R134 in it! 530 g put back+10cc oil+dye to check for leaks in a few weeks. Dropped off at Skoda service and asked why with only 80 g of R134 in aircon it indicated the dash needed removal to remove "blockage?" Initial answer was they didn't trust my choice of aircon place but when shown the actual record they asked to check the Octy. I was allowed to view the VAGCOM data and it showed temperature sensor G262 was at 24 degs C when other temp sensors were showing correctly. Apparently VAG said the G262 is the RIGHT footwell temp sensor?? (Left vent was the fault.)

This is getting even more confusing. How does a right temp sensor affect the left vent? VAG must be correct since it identified G262, FROM THE VIN, at 24 degs C.

Yet:

27

4B0820539

temperature sensor

left, G 261, right, G 262 http://www.realoem.me/Skoda/CZ/OCT/2013/663/R/8/820/820010

 

And above depiction shows blower on RHS of vehicle? Is VAG limited to LHD vehicles diagnostically? Tomoz I am taking the glove-box out to see!

 

Both G262 (right - [on LHD?]) & G261 (left - [on LHD?]) are NTC thermistors (1k2 - 100k) that control L & R footwell flaps. So, how does a footwell duct affect the upper duct, especially when on the right and the left upper duct isn't working with low R134?

 

IMHO thermistors rarely fail, they are passive bits, so the flap motor would be suspect. If VAG had said G261 the problem it's more believable (if it's on the left?)

 

More confused.