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Offline ttpsm2  
#1 Posted : 18 June 2017 13:33:12(UTC)
ttpsm2


Posts: 257

11k on the clock. Complete failure yesterday whilst driving. Any ideas? Surely not a regass and must be underlying problem?

Is there a known weakness on mk4 megane?
Offline Marc_250  
#2 Posted : 18 June 2017 20:24:35(UTC)
Marc_250


Posts: 4,450

Never heard of owt on the 'mk3', mine did 66k without a regas. Not the current weather to be having this issue in, thinking of buying some portable aircon unit for the home!
Offline ttpsm2  
#3 Posted : 19 June 2017 09:53:24(UTC)
ttpsm2


Posts: 257

Just been told by renault will either be 70 pound or 200 pound for a regass depending which of 2 diff gasses is in my aircon. Apparentlty if you dont use the aircon much over winter the gass can escape. Are they taking the piss?
Offline Black225  
#4 Posted : 19 June 2017 11:06:19(UTC)
Black225


Posts: 1,028
Location: On The Edge

That's pretty standard for any system isn't it?
Offline fastdave  
#5 Posted : 19 June 2017 11:09:55(UTC)
fastdave


Posts: 1,290
Location: Marchwood

No they are not. If you don't use it the seals can dry out and the gas can escape.
Offline ttpsm2  
#6 Posted : 19 June 2017 12:12:10(UTC)
ttpsm2


Posts: 257

So if i regass it. Will my seals still be knackered and it will happen again?
Offline RED21  
#7 Posted : 19 June 2017 12:48:47(UTC)
RED21


Posts: 783
Location: New Forest

That's a 50/50, but most of the time they are ok
We are having a run of condensers on various models due to stone impact damage which either occurred over winter or in recent days and because it is hot people are just noticing or cursing the fact they did get things fixed at the service,that includes me:(
Offline Georgeski  
#8 Posted : 19 June 2017 14:27:13(UTC)
Georgeski


Posts: 3,903

I do not believe the 'if you don't use it over the winter line' complete rubbish. I have never used air con over winter and never had an issue, even in cars over 10years old (which had also never been regassed and the air con still worked perfectly).

I bet it is stone impact damage to the condenser, happened on my brothers 200 cup.

Edited by user 19 June 2017 14:28:23(UTC)  | Reason: Not specified

Offline Marc_250  
#9 Posted : 19 June 2017 16:19:15(UTC)
Marc_250


Posts: 4,450

In the era of climate control why bother turning it off at all.
Offline John_walker74  
#10 Posted : 19 June 2017 17:14:00(UTC)
John_walker74


Posts: 803
Location: Buckingham

The gas contains oil which lubricates various parts. Use over winter keeps the lubricant moving round. Just how much this helps I do not know.
Offline Penn  
#11 Posted : 19 June 2017 18:57:04(UTC)
Penn


Posts: 2,699

Originally Posted by: Marc_250 Go to Quoted Post
In the era of climate control why bother turning it off at all.


Even with normal air con, I just don't understand turning it off at all. Don't fancy driving around with steamed up windows in the winter!
Offline jkp  
#12 Posted : 20 June 2017 07:44:22(UTC)
jkp


Posts: 13

When you say total failure, do you mean the not getting cold air, or does the blowers not work.

I had this on mine a few months back and it was a 20 min fix under warranty, with it being the resistor pack that failed. A common fault and one I've had on a few renaults now.
Offline mark@rawlinson  
#13 Posted : 20 June 2017 09:49:09(UTC)
mark@rawlinson


Posts: 82

Originally Posted by: Georgeski Go to Quoted Post
I do not believe the 'if you don't use it over the winter line' complete rubbish. I have never used air con over winter and never had an issue, even in cars over 10years old (which had also never been regassed and the air con still worked perfectly).

I bet it is stone impact damage to the condenser, happened on my brothers 200 cup.


there is oil added to the gas, which circulates and helps to stop the seals from drying out and potentially leaking. Also if never used when its eventually switched on, it can stink like a wet dog.

I agree though, its more than likely stone damage, unfortunately not a warrantable item as its not a manufacturing defect

Offline ttpsm2  
#14 Posted : 20 June 2017 17:09:04(UTC)
ttpsm2


Posts: 257

Apparently just needed regassing. Did they really need to take my car on a 3 mile joyride. Getting pissed off with renault doing this. If you want to drive one just use a pool car or buy one of their own. No justification on a service or regassing the aircon.
Offline ttpsm2  
#15 Posted : 21 June 2017 21:12:42(UTC)
ttpsm2


Posts: 257

Is it normal for aircon recharge to require a 3 mile test drive? Any renault techs on here.
Offline RED21  
#16 Posted : 21 June 2017 21:45:34(UTC)
RED21


Posts: 783
Location: New Forest

It is part of the confirmation of repair process as it allows the compressor to operate at various engine speeds/loads which sitting there at idle or at a raised engine speed cannot reproduce ie abnormal noises.It also gets the refrigerant & oil circulating and any trace dye to find any points of leakage.
Offline Xanda73  
#17 Posted : 22 June 2017 21:33:41(UTC)
Xanda73


Posts: 10
Location: Ribble Valley

Had to get mine re-gasses at 2 years old and I never turn the system off.

Prior to this I noticed on 2 or 3 occasions the obvious smell of the gas leaking from the car whilst driving, and the cooling got worse and worse.

The dealer tech did ring me to ask why I wanted it re-gassed and sounded very surprised I wanted it doing. It worked miles better afterwards (back to new state) and continues to months later.
Offline ttpsm2  
#18 Posted : 23 June 2017 08:48:50(UTC)
ttpsm2


Posts: 257

Originally Posted by: Xanda73 Go to Quoted Post
Had to get mine re-gasses at 2 years old and I never turn the system off.

Prior to this I noticed on 2 or 3 occasions the obvious smell of the gas leaking from the car whilst driving, and the cooling got worse and worse.

The dealer tech did ring me to ask why I wanted it re-gassed and sounded very surprised I wanted it doing. It worked miles better afterwards (back to new state) and continues to months later.


how many miles on the clock at 2 years?

Offline Bilbo  
#19 Posted : 24 June 2017 16:59:19(UTC)
Bilbo


Posts: 45

My system failed on 9k and had to have a new compressor as it was faulty 👍
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