G37 Coupe

The usual questions about a G37s

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Old Mar 13, 2014 | 02:58 PM
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The usual questions about a G37s

Hi, I'm new here. Frequent user of MyG35 and and My350Z. I've had a 2006 G35 6MT coupe. Currently own a 07 G35x and a 07 350Z that I track.

Found a pristine 2009 G37S coupe with only 16k miles on it. I may buy it for my wife. She has driven it and likes it. I've looked it over pretty well and don't see any red flags in terms of condition. Looks new. No overspray or evidence of repairs.

I'll probably buy it in a couple of days but wanted to ask the typical noob question about things I need to look for, potential problems, etc. A site search is all over the place. I will search TSBs and get a CarFax and all that.

Just wondering if there are any glaring things I need to look at when I test drive and before I buy.

Sorry for the noob question but time is running out. Thanks.

George
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Old Mar 13, 2014 | 03:02 PM
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16K miles and a 2009 screams garage queen. Check the exhaust and look for scrapes that would indicate if it's been lowered, which will reduce the life of your struts. Check and make sure the bumpers fit correctly. The TSB's handle a lot of the problems between that year and now. All in All, they're solid cars, provided the previous owner didn't do something stupid to it.
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Old Mar 13, 2014 | 03:51 PM
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Originally Posted by GoFightNguyen
16K miles and a 2009 screams garage queen.
I hope so!

Check the exhaust and look for scrapes that would indicate if it's been lowered, which will reduce the life of your struts.
That all looks clean. The only 'mod' I can find on the car is K&N air filters.

Check and make sure the bumpers fit correctly.
Panel gaps, bumper fitment all look good.

All in All, they're solid cars, provided the previous owner didn't do something stupid to it.
I never buy new cars anymore and I do worry about things like that. On G35 driver an Infiniti tech was talking about synchro problems in the 6 speed gear box and he felt like the gear boxes on the G37 were not up to hard use and high horsepower. I'm guessing it is more of a problem with people not knowing how to drive a manual. The gearbox feels just like the one in my Z which has held up to lots of abuse.
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Old Mar 13, 2014 | 04:48 PM
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Welcome to the Forum!

There has been a lot of discussion here about clutch slave cylinder issues. Apparently they are a weak link and a real PIA to fix.

You don't say what kind of tranny this one has, but if it's a manual you might want to take that into consideration...
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Old Mar 16, 2014 | 07:58 PM
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It is a manual. I wonder if it is the same as the 350Z.

There was a TSB for the 07 350Z slave cylinder. At the track the clutch fluid would overheat and I'd lose the clutch pedal. It usually only happened after a 25 minute session on a hot day. Once the car cooled down I was good for another session and it would start to fail again toward the end.

Anyway, took it to a dealership and they fixed it for free......even though I bought the car used and it was out of warranty. I probably could have solved the problem with high temp brake fluid (in the clutch system) but it was free anyway and I have not had any further problems.

If it is the same issue in the G37, it stems from one of the stupidest pieces of engineering I've ever seen which is putting the slave cylinder INSIDE the bell housing. Not only does that expose it to all the heat generated by the clutch but to fix it you have to take the bell housing off. Typically the slave cylinder sits just outside the bell housing and is one of the easiest repairs you'll ever do.

But, this car will never go on the track so unlikely to be a problem.
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Old Mar 17, 2014 | 06:22 PM
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Originally Posted by n80
It is a manual. I wonder if it is the same as the 350Z.

There was a TSB for the 07 350Z slave cylinder. At the track the clutch fluid would overheat and I'd lose the clutch pedal. It usually only happened after a 25 minute session on a hot day. Once the car cooled down I was good for another session and it would start to fail again toward the end.

Anyway, took it to a dealership and they fixed it for free......even though I bought the car used and it was out of warranty. I probably could have solved the problem with high temp brake fluid (in the clutch system) but it was free anyway and I have not had any further problems.

If it is the same issue in the G37, it stems from one of the stupidest pieces of engineering I've ever seen which is putting the slave cylinder INSIDE the bell housing. Not only does that expose it to all the heat generated by the clutch but to fix it you have to take the bell housing off. Typically the slave cylinder sits just outside the bell housing and is one of the easiest repairs you'll ever do.

But, this car will never go on the track so unlikely to be a problem.
That sounds right; lots of complaints about how often they fail and what a pain they are to fix. Most of those cars are street drivers as well so I don't know if you are safe there...
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Old Mar 22, 2014 | 07:13 PM
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Bought the car yesterday. Love it. The clutch is so much better than the one in my 07 Z and 06 G35 coupe. Huge improvement there. The throttle is also way better than the one in my G35X which we traded. The throttle in the X was like an on-off switch when first starting out. My wife got used to it. I never did. Hated it. I think there was a TSB and some type of tune for it but we never did it.

Anyway, the car is like new even though it is an 09. Like I said, it probably won't ever see the track but I think it will make an excellent GT car for long trips etc. I was relieved to find that it did not have the 4 wheel steer thing. I don't object to what it does, just don't want another complication. It pretty much has every thing else on it. It sounds better than my Z. So did the 06 coupe. Go figger.
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Old Apr 2, 2014 | 03:11 PM
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Originally Posted by n80
Bought the car yesterday. Love it. The clutch is so much better than the one in my 07 Z and 06 G35 coupe. Huge improvement there. The throttle is also way better than the one in my G35X which we traded. The throttle in the X was like an on-off switch when first starting out. My wife got used to it. I never did. Hated it. I think there was a TSB and some type of tune for it but we never did it.

Anyway, the car is like new even though it is an 09. Like I said, it probably won't ever see the track but I think it will make an excellent GT car for long trips etc. I was relieved to find that it did not have the 4 wheel steer thing. I don't object to what it does, just don't want another complication. It pretty much has every thing else on it. It sounds better than my Z. So did the 06 coupe. Go figger.
Exactly how I describe it...
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Old Apr 2, 2014 | 03:42 PM
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it will make an excellent GT car for long trips etc

I agree 100%. I have had mine for 14 months and so far have taken 3 long trips (over 1000 miles) with it, it's a pleasure to drive. Put it in cruise at 75 mph and you should average around 27 mpg. Not bad IMO.
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