[W126 Coupe] PAG VISCOSITY FOR NIPPONDENSO 10P?

[Dick Spellman]

All set Steve.  I always rely on the gauges when filling anyway.  The 
label just kind of gives you the #of lbs needed when shopping.  Still 
that's the same engine M103 so, probably the same in most respects re: 
engine. There are a few special parts for the euro motor as I have 
learned (like the water pump). AC looks pretty much the same.

Dick



Steve Nervig wrote:

> Dick, I should have mentioned more specifically, the sticker is from 

> my C124, not a 126, so the requirement may be different?

>

> Steve

>

>

> On Jun 14, 2008, at 1:36 PM, Dick Spellman wrote:

>

>> Hi Steve,

>>

>> Thanks for the sticker info that also provided total fill requirement 

>> although the gauges and temp may provide a more accurate fill based 

>> on pressures..  I'll use PAG 46 since it's readily available.

>>

>> Take care,

>>

>> Dick

>>

>> Steve Nervig wrote:

>>>

>>> On Jun 14, 2008, at 7:17 AM, Dick Spellman wrote:

>>>

>>>> Just need to confirm that the Nippondenso Compressors on MB use PAG 

>>>> 46 when operating on R-134A.  Can anyone for certain confirm this?

>>>>

>>>> I am just finishing up the emergency replacement (thanks again 

>>>> Jonathan) of condensor, R/D, Exp. Valve, senders and seals on the 

>>>> 86 300SE started early this am.  It had a very slow leak (1 year) 

>>>> on the edge of the condenser where this car was once impacted by a 

>>>> 100lb dear.  Finally got to the point where replacement was needed 

>>>> the other day.

>>>>

>>>> So, I'm ready to button things up, pull a vacuum and recharge once 

>>>> again.  It's been running r134a for five years now and vent temps 

>>>> normal at max were 47F and with this leak worsening it was 

>>>> approaching 60F when I checked pressures only to learn the Spring 

>>>> charge was already on the way out and the dye was most apparent 

>>>> where the previous accident had occurred.

>>>>

>>>> Anyway, PAG 46 for Nippo 10P?  Thanks in advance.

>>>>

>>>> Regards,

>>>>

>>>> Dick

>>>

>>> Hi Dick.

>>>

>>> This chart suggests that 46 is the correct viscosity:

>>>

>>> <http://www.compressortech.co.uk/downloads/CT_Pag_Oil_Reference_Chart_05.pdf> 

>>>

>>>

>>> For what its worth, the R-134a tag on my car says to use "Densooil 8."

>>>

>>> Regards,

>>> Steve

>>>

>>>

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