Air/Con Repair

Forum for Infiniti M35 and M45, and Nissan Fuga owners.
Larz
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Car: 2009 M35 RWD
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Air/Con Repair

Postby Larz » Fri Oct 05, 2018 4:13 pm

After three days with the Q50 Red Sport loaner, the dealer picked it up and returned my car today! Initially, they suspected evaporator problems, but testing proved it was the compressor, the mount, and some kind of collecting tank that also caused a fault in a temp valve. I have no clue what any of those things are, but it was unsurprisingly very expensive. They also found a very slight leak in an O-ring. Here is the breakdown:

Compressor 807.81

Compressor Mount 248.36

Tank Assy 312.43

Compressor bracket 68.21

Mount bolt 9.80

Temp Valve 98.20

O-ring 11.86
____________________________

Parts: 1556.67

Labor: 871.13
____________________________

Total: $ 2427.80

MaxCare - 2402.80
___________________________

Customer pay: $25.00

I have officially surpassed the cost of my warranty ($3,200) from CarMax. I still have complete coverage until Sept 18 2019 or 150,000 total miles.
Today my mileage is 104,000, so I will definitely get to the end date before I reach 150k miles!


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Ilya
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Re: Air/Con Repair

Postby Ilya » Fri Oct 05, 2018 7:03 pm

Nice. Good stuff.

alskie
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Car: 2008 M35x
Location: Baltimore

Re: Air/Con Repair

Postby alskie » Sat Oct 06, 2018 6:35 am

Hi: I'm Al. I just had my A/C Compressor & Condensor replaced by my mechanic and it cost me $982 for parts and $488 for labor.

LIBRILZ
Posts: 1401
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Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Sat Oct 06, 2018 10:59 am

Well my A/C compressor just stopped coming on, lets hope it's not nearly this expensive lol

Larz
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Re: Air/Con Repair

Postby Larz » Mon Oct 08, 2018 1:59 pm

alskie wrote:
Sat Oct 06, 2018 6:35 am
Hi: I'm Al. I just had my A/C Compressor & Condensor replaced by my mechanic and it cost me $982 for parts and $488 for labor.
Good point! If you use a non-dealer shop with a qualified mechanic, purchase non-OEM but perfectly good parts, and you can avoid the higher labor fees that dealers charge, you can save lots of money and get the same results. My car has never been serviced anywhere but the dealer and has 100% Infiniti parts - only because it has always been under factory and extended warranty since 2009.

Sstupid
Posts: 225
Joined: Sat Aug 22, 2015 4:45 pm
Car: 2007 M45 Sport

Re: Air/Con Repair

Postby Sstupid » Thu Nov 15, 2018 2:05 pm

LIBRILZ wrote:
Sat Oct 06, 2018 10:59 am
Well my A/C compressor just stopped coming on, lets hope it's not nearly this expensive lol
Not sure if you have fixed this already or not but these cars are famous for having the electromagnetic coil go out on the AC compressor clutch. I have a thread about replacing it on the DIY list.

LIBRILZ
Posts: 1401
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Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Fri Nov 16, 2018 9:14 am

Sstupid wrote:
Thu Nov 15, 2018 2:05 pm
LIBRILZ wrote:
Sat Oct 06, 2018 10:59 am
Well my A/C compressor just stopped coming on, lets hope it's not nearly this expensive lol
Not sure if you have fixed this already or not but these cars are famous for having the electromagnetic coil go out on the AC compressor clutch. I have a thread about replacing it on the DIY list.
Hmm..interesting! I think I saw your thread awhile back, what exactly is the electromagnetic coil?

I want to fix this but it isn't a priority yet, but by feb/mar it will be I'm sure

my car used to have problems with the A/C compressor randomly cutting out if it was REALLY hot outside, or if I hit the throttle enough to make the A/C compressor turn off..it would not come back on for awhile(hours, maybe even next day)

It was working fine then previously, then I got back in the car a few hours later and it wasn't working, hasn't worked since lol

Edit: just looked it up, doesn't look too bad to replace the coil, only thing is Idk where to buy one lol

Sstupid
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Car: 2007 M45 Sport

Re: Air/Con Repair

Postby Sstupid » Fri Jan 18, 2019 9:51 pm

If you haven’t gotten to this yet, lemme know. I’ll be in here a little more often for a while. I have some neglected-care stuff to do on my car.

LIBRILZ
Posts: 1401
Joined: Sun Mar 04, 2007 3:17 pm
Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Sat Jan 19, 2019 2:53 pm

I haven't done it yet, But I did see your write up. Im going to tackle this in the next few weeks. It hasn't been super important not to have a.c. in the winter, but its going to be heating up in a month or so

steve_c
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Car: 06 M35x
Location: Northeast USA

Re: Air/Con Repair

Postby steve_c » Sun Jan 20, 2019 9:49 am

LIBRILZ wrote:
Sat Jan 19, 2019 2:53 pm
.......It hasn't been super important not to have a.c. in the winter.........
True, but do not forget the A/C system is designed to keep seals & components lubricated by carrying oil to the varies components in the system while the compressor is operating.
Upon shutdown, the oil migrates to the lowest point possible, depriving seals & components of lubrication until the next time the unit (compressor) is turned on.
The only time these components & seals get lubed is while the compressor is operating.

This is why modern systems utilize the compressor during most cycles regardless of actual temps needed to provide comfort. They engineer the system this way to insure components & seals stays lubed.

EdBwoy
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Re: Air/Con Repair

Postby EdBwoy » Sun Jan 20, 2019 2:37 pm

All the above... Plus remember that A/C is not air cooling, it is air conditioning. And that can happen at all temperatures, if your AUTO system is working as designed.

https://forums.nicoclub.com/climate-auto-t596457.html

LIBRILZ
Posts: 1401
Joined: Sun Mar 04, 2007 3:17 pm
Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Sun Jan 20, 2019 4:53 pm

steve_c wrote:
Sun Jan 20, 2019 9:49 am
LIBRILZ wrote:
Sat Jan 19, 2019 2:53 pm
.......It hasn't been super important not to have a.c. in the winter.........
True, but do not forget the A/C system is designed to keep seals & components lubricated by carrying oil to the varies components in the system while the compressor is operating.
Upon shutdown, the oil migrates to the lowest point possible, depriving seals & components of lubrication until the next time the unit (compressor) is turned on.
The only time these components & seals get lubed is while the compressor is operating.

This is why modern systems utilize the compressor during most cycles regardless of actual temps needed to provide comfort. They engineer the system this way to insure components & seals stays lubed.
Absolutely, I'll get it fixed soon!
EdBwoy wrote:
Sun Jan 20, 2019 2:37 pm
All the above... Plus remember that A/C is not air cooling, it is air conditioning. And that can happen at all temperatures, if your AUTO system is working as designed.

https://forums.nicoclub.com/climate-auto-t596457.html
Well my issue is my compressor doesn't come on, everything else is fine though

Sstupid
Posts: 225
Joined: Sat Aug 22, 2015 4:45 pm
Car: 2007 M45 Sport

Re: Air/Con Repair

Postby Sstupid » Wed Jan 23, 2019 12:20 am

I would add to that DIY that I posted, to go ahead and unbolt the compressor from the block. After replacing the entire compressor, I realized it would have given me more room to maneuver.

LIBRILZ
Posts: 1401
Joined: Sun Mar 04, 2007 3:17 pm
Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Thu Jan 24, 2019 2:18 pm

Interesting, thanks!

LIBRILZ
Posts: 1401
Joined: Sun Mar 04, 2007 3:17 pm
Car: 1990 Nissan 300zx
2007 M45 Sport
Location: Lake Charles, LA

Re: Air/Con Repair

Postby LIBRILZ » Tue Feb 12, 2019 4:36 am

The electromagnetic coil replacement, with the compressor in the car is HORRIBLE! Easily one of the worst things I've worked on, on a car

Biggest note? If you're going to tackle this job make sure you have snap ring pliers that can open up wide, most snap ring pliers i've been using on this job suck..makes me despise snap rings


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