jmrjames

I am very pleased to hear that you located a place that has an electronic sniffer. If I read your story precisely this is the first time such a device has been used. Is that correct ?

If it is true and the rear expansion valve was found leaking than I assume it was discovered after the other place changed the o rings. That being the case it seems very likely they messed up the front o rings also. I am making an assumption that they may have messed them all up. It could also indicate that the rear evaporator is the problem which is not uncommon unlike the front one.

I hope you didn't go to this new shop and say to them that the front evaporator is bad. Did they tell you that or did you tell them ? Freon gas is heavier than air. If there is a leak the gas will fall to the floor. It is possible that the front expansion valve leak will travel into the dash area and then to the floor.

The one thing that seems clear is the system still will not hold a charge after the work done by others. I hope that you do not have to have the dash removed.

Best of Luck

Student of Capt. Earl

Z928328

hello,

Yes it's confirm it's the front evaporator.

*Edit*

JmrJames,
Yes it's the first time the device was use- The last time I thought it was it but in fact it's not(The other shop lie to me). This shop check everything before assume it's the front evaporator. They even charge it up & pressure is lost according to their machine. & it's track at the cooling coil/evaporator.

Here's some picture from today: took them 4 hrs to take everything out!!
The front cooling coil/evaporator- It's was leaking!!!!

You can see the mechanic soak the evaporator in the water: Bubbles coming out.
Old vs new:



Dash out:

Traces of dye seen in front evaporator.


Z

SQLGuy

Man! Porsche really built the car around that front evaporator. Hard to believe there's not a better way to pull it out, like through the firewall or something.

Glad to see they got to the bottom of the problem. It's interesting to me that the failure seems to be a crack in the middle of one of the main evaporator tubes and not a leak at a copper/aluminum joint. I wonder what caused it... manufacturing defect?

jmrjames

Excellent, this may be a true happy ending for you.

It cost you a lot of time, effort and money to get to the right place (shop). I do believe that you saved money in the long run. One day for the dash work instead of the three days you were quoted before is a big savings alone. Then factor in the others were no good could have cost you to be where you are now after a very large repair bill to them. I think that is what everybody was saying to you from your story all along. It didn't add up because they were lying to you.

Happy motoring and be cool.

PS Thanks for the photos

Z928328

Yep- A 2007 toyota Vios model over there had the cooling coil change- Just pull off the glove box & pull the cooling coil out(that's it)- Took them 3 hrs to do everything.

For the Porsche-It took them 2 men to unscrew & pull out dash etc. 4 hrs to pull out the dash & the cooling coil. I visit the car again just now in the evening- New cooling coil already in,Dashboard already in,By tomorrow - All the radio, control unit center console etc.. will be put back.

*edit- I don't know why the cooling coil fail so fast- maybe it's never been use & it corrodes.? who knows?

thanks- Yes- I'm happy that they finally found the leak- I was nervous when they took the old cooling coil out- & it's not source of the leak- Well they are confident it's the source of leaks( as you can see in the pics)-

Well after this- I'm bringing to the dealer to diagnose the "PSD-Differential , Anti Lock & speedo" not working.- i believe it's the speed sensors. or the relays.

& also to solve the small coolant leak- As they already pointed out it;s somewhere near the hose.Maybe need a gasket or seal it up or just tightened.

Last one is to change all 10 speakers- I was quoted 800 for all 10 with good sound(Blaupunkpt). I think I go for a sony which is cheaper . ..See how the budget goes.

Z

Bill Ball

Well, let's give them some credit for getting the evaporator out quickly and finding the leak, as well as having a new evaporator ready to go. Excellent.

Z928328

Hello all- Just to inform- Car is done: & car is cold now- The regas it on Monday when they install the new cooling coil-Tuesday- They install back everything & until now so far today -No leaks.

One question- Sometimes when switching off the car- I can hear " SSSS" immediately- I hope it's like Wally said Pressure from Expansion valve-

t

They said BMW is harder. As more needed to open up.

BTW- My dash have been open up before as may screw in there were missing- So they put in new screw. Well It's during the time of Amedeo Corp. ownership when Porsche engineers took care off the car at the royal garage.

jmrjames

That may have been the reason for the leak in the evaporator.

Sounds like you found the right place and if they pressure tested and sniffed before they let you go you should be fine.

Z928328

Yes- They use the sniffer & pressure test before releasing the car & very confident no more leaks.

The car is done on Tuesday but didn't release it because they want to check everything & test. That's why I took the car on Wed late evening.

It could be the evaporator is swapped before?Or corrodes while in storage?
Who knows as my car have no maintenance history.

All I know- it's stored in the royal garage since 1992 & the car originates from England.

I'll give a week- I hope it's fine

Z