Alex
Nordschleife
- Joined
- 6 Mar 2014
- Messages
- 22,172
Earlier this year my aircon finally ran out of frost, due to a weeping joint on one of the pipes running the length of the car. The joint's a common leak point and also common for the bolt to be welded in, so I left it for my trusted mechanic to sort out when it was serviced.
He ended up drilling the old one out and putting a bolt all the way through with nut on the otherside but unfortunately at the time he didn't have the correct o-ring so it's been left since then. As I'm off on my hols next week I need it sorting so booked it in with him tomorrow to fit the o-ring and re-gas.
On to the topic, he said to me, I'll do it properly for you as well. I said how do you mean - vac down then gas and oil? At which point he said - No, I'll drain the existing oil from your compressor as once it's stopped working, the old oil just lies there dormant and vac'ing down doesn't get it out. He tells me that when garages redo your aircon, if they don't do this, then all they're doing is adding more oil to what's already in there and thus, not having the correct oil/gas level in there for the system to function 100% efficiently.
Seems perfect sense to me and also seems like 99% of places that do aircon don't do this. Was anyone else aware of this?
He ended up drilling the old one out and putting a bolt all the way through with nut on the otherside but unfortunately at the time he didn't have the correct o-ring so it's been left since then. As I'm off on my hols next week I need it sorting so booked it in with him tomorrow to fit the o-ring and re-gas.
On to the topic, he said to me, I'll do it properly for you as well. I said how do you mean - vac down then gas and oil? At which point he said - No, I'll drain the existing oil from your compressor as once it's stopped working, the old oil just lies there dormant and vac'ing down doesn't get it out. He tells me that when garages redo your aircon, if they don't do this, then all they're doing is adding more oil to what's already in there and thus, not having the correct oil/gas level in there for the system to function 100% efficiently.
Seems perfect sense to me and also seems like 99% of places that do aircon don't do this. Was anyone else aware of this?