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Sedans Infiniti G35 Infiniti G35/G37 Seat Comfort
31 messages, Last post on Jul 19, 2009 at 12:45 PM
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| I bought the '07 G35x after turning in my '04 G35. I was fine in the '04 but the '07 seats are extremely hard! I have to use a seat cushion or I am in constant pain in my lower back and thighs, even after I get out of the car. Bummer because I absolutely love this car otherwise. | |
| I have a bad back and I must have good seats. My wife's Volvo XC90 is heaven and have driven 6 hours straight in it, no problem. I remember in 2005 driving the G35 coupe with the 19inch wheels which absolutely killed me. I am happy to report that the G37 was very comfortable with excellent seats. On top of that, whta made a huge difference if the front cushion that pulls out which allows your thighs to rest and take the pressure off your low back. Great. I drove the new G35 sedan and did not find it as comfortable with regards to my condition as the more upright sitting position pressig the clutch was not as ideal as the coupe, but still very good. | |
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Replying to: cmnott (Jan 28, 2008 11:22 am) The sport seats have the same thigh extensions that you mention enjoying in the G37.
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Replying to: scottm123 (Jan 28, 2008 11:40 am) |
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Replying to: cmnott (Jan 28, 2008 11:22 am) I think the bigger issue is, can you stand a firm ride? Gs are sporty and offer a firmer ride like a BMW. If you have a bad back and find that a firm ride is too much, you may want ot move up to an M which dampens better. It's also not quiet inside the cabin when the road surface gets rough, but it doesn't disturb me from enjoying the MP3s on the road. I give the G35 Sport seat a 9 out of 10 for seating comfort.
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Replying to: bg18947 (Jan 31, 2008 2:46 pm) I work in Framingham, so I'll keep my eye open for the new 08 X-Sport. Not many G's around our part yet... and that's the way I like it! 
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Replying to: mommatee (Sep 10, 2007 10:31 am) |
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I owned a 2004 G35 Coupe, which I absolutely loved - except that I also couldn't stand the seats for more than an hour or two, with annoying back pain. I sold it to await the G37, which I now own - only to find out that the Sport Seats caused the same problem as in the G35. The Sport Seats are the exact same ones used in the Japanese home market Skyline (the average Japanese male is about 5'4" and 130 lbs, the average American is about 5'11" and 190 lbs. - Americans are just bigger than Japanese, and most car companies fit bigger seats here). The problem seems to be that the seat is too narrow, and the pressure, particularly in the thigh area, results in lower back pain (the G35 seats exacerbated this problem by having the seat adjustment controls immediately under your right thigh, further crimping the available space. I drove my car on a 1500 mile trip, and started wanting to claw my way out of the seats after about 4-5 hours. It's just too confining for me. The problem is now solved! I found a simple and elegant solution. I took the car to a custom upholstery shop (I called several, to find one that has worked on seats in high end sports cars). While they had not worked on a G37 before, they have done similar modifications on other "Sport" seats (in Porsches) to provide more room. The same solution they have used on Porsches worked perfectly on the G37S. The G37 Sport Seat has a rigid metal brace in each thigh bolster. It is a plate, about 1 in x 6 in, with a short supporting rod on each end. It is welded to the seat frame, and holds the thigh bolsters very rigidly at a nearly upright angle. If you push down and feel around in the thigh bolster, you can feel this metal brace just under the upholstery. The adjustable thigh bolster bladders also push against these braces, making for a very tight fit - it is rock hard. The solution was simple: remove the braces. They removed the driver's seat, took the upholstery off the bottom, and just cut off the braces. Reassembled, the seat looks exactly stock - it is now identical to the non-Sport (regular) seat bottom, but still with the inflatable thigh bolsters. There is no way of telling that anything was done. But, sitting in it is just a world of difference! Instead of the thigh bolsters being rock hard and unyielding, the thigh bolsters are now resilient and pliable, and yield to the pressure of legs and a larger body on them. The driver's seat now behaves and feels like the bottoms of the non-Sport seats. The inflatable bolster bladders still work, but are just not as rock-hard, since they are now pushing against foam and upholstery instead of fixed steel. Driving is now a completely new experience. The seat is now actually completely comfortable, instead of just somethig to be tolerated in exchange for the rest of the benefits of the car. The back bolsters are unchanged, so one is still held in place "Sport" style, but without the confining pressure on the legs (I asked them to look into the back bolsters, but they cannot be played with because of the seat mounted side air bag). For anyone who also feels the thigh bolsters are too confining, this is a simple and invisible solution that completely cures the problem (I wouldn't be surprised if Infiniti might start doing this in the future, if they get enough complaints about the seats). After 5000 miles with this modification, the seat looks completely stock, there has been no sagging or other degredation of the material - removing the metal braces simply turns the Sport seat bottom back into the regular seat, which to my bottom is much more comfortable. |
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I'm going to purchased a 2008 G35x tommorrow. I test drove the sport, my a** and legs could not fit in those sport seats. I'm 6'3'' 230lbs. The dealer said that half the men that test drive the sport version don't fit. I have to settle for the wheel and tire pkg instead. I really wanted the side sills, but oh well!! A comfortable back and behind are more important.
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