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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
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8,841 Posts
Discussion Starter #1
We came over to the UK to escape the heat of Spain, only to find similar temperatures here in the South of England.

I switched on the air-con but no cold air :(

I can't hear the compressor clutch engaging, so I suppose I'll have to investigate that first.
With my 1993 SL500, it has the climate control panel without the LCD screen, so I can't run the diagnostic programme using REST.

No proper tools or my workshop here, anyone got any pointers to the problem?

James.
 

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Greek God of the R129
SL500-500SEL-190E
Joined
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8,391 Posts
James, friend.....
We can not have you overheated. Lol.

On the accumulator are two switches, one red or green for the fans.

The other controls the compressor.
Bridge that.

The compressor should engage.
If it does, you are refrigerant low.

Add some, now you should be HAPPY.

Regards,
aam.
 

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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
Joined
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8,841 Posts
Discussion Starter #3
Thanks Albert, I'll try that later and report back.
 

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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
Joined
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8,841 Posts
Discussion Starter #4
Absolutely spot on Albert :bowdown:

I shorted out the the two cables going to the green accumulator switch, and the two axillary fans started up, and the A/C clutch engaged.

It was of course still blowing warm air, so I'll have to look around for a workshop that can re-gas the system and check for leaks.
 

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Greek God of the R129
SL500-500SEL-190E
Joined
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8,391 Posts
That's what friends are for. :)

Don't look for troubles.
Timing is everything.....

Just stick a few cans in her, preferable one with lube the other dry. ;)

That should do her for now. Lol.

Regards,
aam
 

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Registered
Sold1990 500sl - 1992 300sl 1999 sl 500
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1,545 Posts
Not needing it before as redliner says its hot here,is this the place where the a/c is tested and filled up 90 model (white arrow ) 1st photo ,2nd photo are these the switches talked about ,thanks for the help:bowdown:
 

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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
Joined
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8,841 Posts
Discussion Starter #7
I looked in 'Yellow Pages' and incredibly there is an A/C specialist about half a mile away.
I called them and have made an appointment for 12 today. They quoted £66 (about $100) to check and re-gas the system.
At least being able to tell the mechanic about the accumulator switch test, and where to check and fill the system, will give me a lot of credibility ;) So thanks again to Albert and mm.

I'll post up later what happens :thumbsup:
 

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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
Joined
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8,841 Posts
Discussion Starter #8
All done :thumbsup: The workshop, Cartech Autocentres Ltd. Worthing West Sussex, were really quick and effcient. They put the car onto a Konfort 650 for an hour and a half to check the vacuum. They then added a UV dye and re-gassed the system with 900grams of refrigerant.

We are now driving around with the top down, but icy air blowing into our faces :thumbsup:
 

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Greek God of the R129
SL500-500SEL-190E
Joined
·
8,391 Posts
Not needing it before as redliner says its hot here,is this the place where the a/c is tested and filled up 90 model (white arrow ) 1st photo ,2nd photo are these the switches talked about ,thanks for the help:bowdown:

You got them.
Yes, & yes. Lol.

Regards,
aam.
 

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Administrator
1998 Pano SL500; 1993 SL500; 2005 ML270cdi
Joined
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8,841 Posts
Discussion Starter #12
No way Jose, the amount of times we've been flashed by speed cameras, I don't want the perpetrator sitting in the car posing for BenzWorld :D
 

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Registered
Departed 1998 SL500 (and the Pano is in Bogota)
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11,121 Posts
That's why elbeik wears a full helmet with face mask.
 
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