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Chart based on 77 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
The idler pulley broke down. I had to order this part (no part stores carried it) and I replaced it along with the drive belt.
93200 mi
US $300
Air fuel ratio sensor needed to be replaced.
207000 mi
US $1000
Exhaust y-pipe replaced
28000 mi
Cruise control surge, hesitation on sharp acceleration from cruising with foot on gas. ECU re-flashed, self learning on mixture, throttle reset.
42900 mi
US $250
Drive belt broke damaging AC compressor. Belt passed inspection one month prior. It should not have. Disappointed that dealer didn't spot worn belt. Could have prevented car breaking down in traffic and requiring tow.
52000 mi
US $350
Serpentine belt snapped again. Brought back to repair shop that did original repair in June. Found Tensioner misaligned with serpentine belt. I paid for part but shop covered labor and cost of additional belt.
Removed and replaced two valve timing gears and belt
53000 mi
The car was hesitating when leaving a stopped position.
66000 mi
US $235
I had a ticking sound that started at 1800RPMs and got faster and louder, with RPMs, up to 4000RPMs. Dealer correctly diagnosed as...
16000 mi
Fixed surging issue in cruise control; replaced radar sensor and reflashed ECU.
24000 mi
Acceleration surge from stop, reprogrammed ECU to fix.
83000 mi
US $410
Rough idle, throttle hesitation. Fixed by cleaning throttle body/plate, fuel injectors, and reflashing ECM
114000 mi
US $665
Replace wiring harness for fuel injectors due to rodent damage under engine
99000 mi
US $800
cleaned throttle body
40000 mi
the rear seal was replaced
40200 mi
Complete replacement of VTC pulley system due to SES. Complete replacement of VTC pulley system due to SES
76880 mi
Fixed broken exhaust clamps on the heat shield @ 6 places. Noted bad corrosion along the exhaust system. No need for replacement yet.
167000 mi
US $980
Water pump failure. 163k miles
168000 mi
US $3780
Main bearing total failure. Engine replaced with used part
69000 mi
US $385
oil pan leak
71000 mi
US $40
Replaced deep belt.
90000 mi
US $345
Replaced tranny mount
105000 mi
US $300
Heater hose started leaking,
108600 mi
US $15
Car has had persistent coolant smell after driving. Noticed upper radiator hose clamp had coolant residue. Replaced upper hose and clamps. Car still has coolant smell, but does not lose coolant or overheat.
109900 mi
US $3
Has very common head gasket coolant weeping. Possibly fixed with Subaru Coolant Conditioner.
58000 mi
The manual shift mode would intermittently not up-shift. Transmission worked in all other modes. Originally, dealer could not replicate problem. On subsequent visit, problem was noted by technician and the shifting unit replaced.
Repaired a hole in the exhaust system due to corrosion. The front Y-pipe and flex pipes after the catalytic converters were replaced.
9000 mi
TSB ITB07-045, 2007 G35 SEDAN; COLD ENGINE START ISSUES
• Rough idle during the first minute of engine operation after cold engine start.
And/or
• Slight engine speed fluctuation during light throttle acceleration during the first ten minutes of d
64000 mi
US $55
After doing some research I discovered that I wasn't crazy in thinking that the throttle was way too sensitive in low speed situations. Turns out there was a service bulletin on this and a software fix for the electronic throttle.
96300 mi
US $125
Leaking radiator hose
22320 mi
Gearshift not going into DS / stuck in DS.
50000 mi
Strange hesitation and shifting problems around 3k rpms. Transmission mechanically perfect and no shavings. Mechanic replaced TCU (with the valve control box) on advice from Infiniti and issue is gone.
97000 mi
Throttle body refleash for hesitation and juddering at speed.
98000 mi
US $1144
Radiator burst.
72500 mi
US $35
Oil change and rough idling
121380 mi
C $850
Bank 2 Throttle Body failure. Car would not start, could smell gas. Computer code directed shop owner to the problem quickly. Purchased used Throttle Body for $200 versus $800 for new from dealer.
200260 mi
Both variable valve timing solenoids had to be replaced so the car could pass an emissions test for resale. Rad hose clamps rotted and hose blew off spilling almost all coolant. Driven a ways in this condition, head gasket blown, possibly more damage. A write off.
69400 mi
US $150
Main radiator hose was split and needed to be replaced, but coolant flush was also conducted at same time as repair since system was open
1860 mi
Throttle sensitivity TSB
37820 mi
C $22
Mechanical key could not be removed from port. Mechanic successfully removed key without damage to either key or port.
19000 mi
Extremely sensitive throttle. You could push on the pedal and it would just take off all of a sudden. Found a TSB for the issue and gave it to the dealer. They performed the TSB and it works fine.
72000 mi
TPMS Sensor flashed then solid yellow. Was told the TPMS sensors were OK but needed to be reprogrammed. Dealer reprogrammed all 4 sensors and stated it was not covered by the extended warranty. Outside shop replaced coolant as a part of preventive maintenance, but they damaged one of the hoses causing the coolant to leak out on the road and engine to overheat. Car towed to dealer, who reattached the hose and re-filled coolant
63000 mi
Car was hesitating and running rough on cold start-up. ECU was re-flashed with latest software
35000 mi
Replaced left side catalytic convertor.
113460 mi
C $649
Exhaust
22000 mi
Gear select unit malfunctioning (electronic failure) (but went in gear).
23000 mi
Gear select unit malfunctioning - short in shift indicator switch (but went in gear). Previous repair thought to be successful, but turned out to be temperature related, and reappeared. Won't know if this was successful until winter.
88000 mi
US $150
Rattle, caused by loose heat shield.
Tightened at no cost.
91000 mi
US $550
Leaky radiator hose. Both hoses replaced, flushed radiator and fill.
39000 mi
Camshaft position sensor replaced
44000 mi
SES light indicated occasional timing issues. Cam sprocket had excessive unusual wear. Replaced. This problem is intermittent and the SES light can take a while to detect the issue and come on again.
Clattering noise from engine when shifting gears and using brake or gas pedals. Dealer determined it as known problem with this type of car (G35 coupe stick shift) where engine goes through oil too quickly, and that engine would need replacement. Engine was successfully replaced and has been fine since.
16620 mi
Engine is undergoing an oil consumption test. Apparently Rev-Up engines are prone to oil loss.
19420 mi
Engine was using excessive amounts of oil. Engine was replaced.
See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how
frequently 2007 Infiniti G problems occur, check out our car reliability stats.