Aircon drive stains

Spawny lad · Post by **Spawny lad** » Thu Jul 18, 2019 9:26 pm

Hi.ive noticed some stains on the block paving.ime more or less sure its from the aircon.
I did have a full service last week.
On my previous cars the aircon run off drips disapeared.
I had the tracking done on monday and could see the aircon drain off coming out it was a hot day.

Chippie · Post by **Chippie** » Thu Jul 18, 2019 9:55 pm

The air con should only drip clean water that has been condensed from the air entering the car, is it possible that it’s oil that is dripping from when you had it serviced, either from a leaking sump plug / filter or spilled oil / brake fluid

Spawny lad · Post by **Spawny lad** » Thu Jul 18, 2019 10:32 pm

Thankyou.
In that case i will go back to garage who serviced it to check.
I had a full service and diff rebuilt under my 3 month warranty.
Does the aircon run off never have anything in it to leave a light stain on drive

buzyg · Post by **buzyg** » Thu Jul 18, 2019 10:54 pm

Spawny lad wrote: ↑Thu Jul 18, 2019 10:32 pm Thankyou.
In that case i will go back to garage who serviced it to check.
I had a full service and diff rebuilt under my 3 month warranty.
Does the aircon run off never have anything in it to leave a light stain on drive

Should only be water dripping, as above it is simply condensation. Dribble some water on the stain if it's oil you may see a wee rainbow effect.

Spawny lad · Post by **Spawny lad** » Thu Jul 18, 2019 11:00 pm

I put some oil drive cleaner on it.
And did,nt all go away so i rekon its not aircon water..
Do them undertrays come off for a service i wonder if oil could go all over the place

step_change · Post by **step_change** » Fri Jul 19, 2019 8:26 am

Yes the undertrays do come off. They are made from a hard, felt type material and they can get soaked in oil if there is an oil leak from above.
What could be happening in your case is some water from the aircon is dripping onto this tray and possibly washing off slight amounts of previous oil that is present on the undertray and that is what it causing the driveway stains.
The acid test is to not use the aircon for a few days and see if you are still getting the stains. If you are, something is leaking from above.

Spawny lad · Post by **Spawny lad** » Fri Jul 19, 2019 11:07 am

Thanks.yep ile try no aircon.and park on other side

Thrustyjust · Post by **Thrustyjust** » Fri Jul 19, 2019 1:15 pm

You only get water condensation from the unit, as it removes humidity from the air. Nothing else. So it wont be that ( I work in air conditioning

) This then just drains to ground under the car. As others have said about contamination being caused by other substances . This will be the reason, not condensate from the a/c.

Spawny lad · Post by **Spawny lad** » Fri Jul 19, 2019 5:17 pm

Thankyou.
Just been on ramp at a garage.
The sump plug is leaking so be going back to where i had the service done.
Thankyou for all info.

maxman · Post by **maxman** » Fri Jul 19, 2019 8:53 pm

We had a similar thing on my sons car,looked like it was the sump plug leaking.It turned out to be the oil filter housing ,the oil was only leaking when the engine was warm,and it was running on to the sump plug.

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