Infiniti G Infiniti G

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Infiniti G repairs by problem area

Engine (23%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (13%)

Suspension and Steering (13%)

Electrical and Air Conditioning (24%)

Paint, Rust, Leaks, Rattles, and Trim (14%)

Other (6%)

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Chart based on 2424 repairs.

Infiniti G transmission repair cost distribution

$2500+ (10%)

$1000 - $2499 (16%)

$500 - $999 (18%)

$100 - $499 (41%)

< $100 (14%)

Chart based on 173 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2013 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic RWD

29000 mi Rear axel seal was leaking. 

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2013 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic AWD

16120 mi small oil leak of the transfer case. Dealership replace the tail transfer case seal. 

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2012 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 6-speed manual RWD

45000 mi Clutch fluid leak 

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2012 Infiniti G 4dr Sedan

218-horsepower 2.5L V6 7-speed shiftable automatic AWD

11000 mi occasional hard shifts in the first 3 gears. happens more often in the cold. 

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2011 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic AWD

29000 mi Reprogram of ECU/TCU with latest TSB firmware to correct harsh downshifts and on-throttle acceleration lag. 
18000 mi Reprogram transmission per TSB 

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2011 Infiniti G 4dr Sedan

218-horsepower 2.5L V6 7-speed shiftable automatic RWD

3700 mi Transmission shifts inconsistently, sometimes roughly, sometimes over-revs between 3rd and 4th gear. 
12000 mi Intermittent problem ... rpm's flare 300-400 rpm when transmission shifts from 3rd to 4th. Update: The rpm flares occurred with less frequency following the latest ecm and tcm update. They also seemed less likely when driven vigorously. 

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2011 Infiniti G 2dr Coupe

330-horsepower 3.7L V6 7-speed shiftable automatic RWD

14000 mi Transmission software upgraded to improve downshifting characteristics. 

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2011 Infiniti G 2dr Coupe

330-horsepower 3.7L V6 6-speed manual RWD

24000 mi 6-speed Manual transmission random gear grinding heard and felt when shifting from 2nd to 3rd. 

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2010 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic RWD

12000 mi Software update to transmission to smooth low-speed shifts. 
23000 mi TCM/ECM update. 

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2010 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic AWD

74000 mi

US $100
Transmission output shaft seal was leaking. Had to be replaced Hard shifting in the morning when engine slightly cold. Dealer stated that the software was up to date for the transmission and that they could not replicate the issue. 
30000 mi Had to reprogram trans 
46000 mi Car wouldn't shift out of park. Dealer fixed transmission linkage problem under warranty 
69100 mi

C $100
Reprogramming of transmission harsh shifting in lower gears! 

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2010 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 6-speed manual RWD

61300 mi Rear differential bushing (within subframe) was leaking and appeared to have completely leaked out, causing shifts to have more jolt. Repair took 3 days total (2 days for waiting for the part to arrive). 
112000 mi

US $3002
Replaced dual mass flywheel, pilot bearing, crankshaft sensor, & clutch slave cylinder. Also replaced clutch master cylinder per my request. 
26000 mi whining noise heard from transmission (manual) when cold. goes away completely once warmed up. due for fluid change at 30k mi, will see if noise disappears. 

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2009 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic RWD

56000 mi TSB to fix rough downshift from 3 to 2. Dealer noticed during test drive. 

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2009 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 7-speed shiftable automatic AWD

36000 mi Reprogram transmission and engine control module to correct harsh downshifting. This was an infinite issued technical service bulletin 
74000 mi

US $375
Car had sudden acceleration while brake was depressed. They reloaded the software. They were not able to recreate the issue. It has not happened again. Still not sure what caused it. 
47000 mi

US $400
Creaking for underside of vehicle. Dealer lubes axles. 
35000 mi Harsh down shifting, reprogrammed transmission per TSB. 
94300 mi

US $2000
AWD system failed, needed to have coupler replaced. 
98000 mi

US $200
Leak fixed and fluid changed 

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2009 Infiniti G 4dr Sedan

328-horsepower 3.7L V6 6-speed manual RWD

40700 mi

US $42
Manual transmission would grind into 5th gear when cold. All other gears were fine and 5th was fine when warm. Tried replacing fluid with Redline synthetic, did not fix the problem. 
41300 mi Manual transmission would grind into 5th gear when cold. All other gears were fine and 5th was fine when warm. Dealer replaced m/t fluid unnecessarily (customer pay), then replaced transmission under powertrain warranty. 
48000 mi Slave cylinder leaked all clutch fluid. Transmission had been replaced under warranty 10 months earlier for 5th gear grind. They replaced the whole trans again under parts warranty since slave cylinder was part of the replacement trans. 
24000 mi tranny noise..fixed by replacing the entire transmission 

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2009 Infiniti G 2dr Coupe

330-horsepower 3.7L V6 7-speed shiftable automatic AWD

81700 mi Vibration when driving 65-70 mph got worse a speed increased 1st diagnose as bad tires Later determined 2 drive shafts were needed 

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2008 Infiniti G

Engine not specified

60000 mi Would not shift manually (automatic transmission 5at). If shifted manually, it would automatically go into sport mode and would not return to Sport mode. They replaced the shifter assembly. Located in the middle area between the seats. 

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2008 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 6-speed manual RWD

81000 mi

US $2400
Clutch, pressure plate. Due to prolonged driving at high speeds the flex plate or something burned up and clutch failed. 
35500 mi

US $250
Clutch fluid failure. Clutch pedal only returned half way. Personal attempt to bleed fluid made issue worse. Took mechanic 2 hours to fully bleed system. Will be replacing both master and slave cylinders in near future. 
36500 mi

US $1200
Clutch master cylinder replaced with new OEM. Clutch slave cylinder replaced with Zspeed HD aftermarket unit. 
55500 mi

US $2200
no pressure in clutch: failed slave cylinder and master cylinder led to failure of clutch/etc - replaced slave/master cylinders, clutch/flywheel/pressure plate 
56000 mi Bad slave cylinder from Infiniti direct. Had to replace again 
62000 mi

US $900
Failed csc again. 3rd time in less than a year 
63000 mi Manual transmission was grinding going into 5th. Dealer diagnosed it as a bad synchro and replaced the transmission under warranty. 

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2008 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic RWD

24000 mi Replaced shifter to address problem with upshift switch in manual mode for automatic transmission. 
37000 mi Car would not shift into manual mode. 

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2008 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic AWD

79000 mi vibration at highway speed 
4960 mi

C $198
Shifting from gear 2 to 3 is extremely rough at times. Took it in, they said it was normal (which is not true), but they went ahead and changed some fluids and charged me almost 200 bucks for it. It got somewhat better after (it happens less often now). 
12000 mi Repair of console shifter. 

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2008 Infiniti G 2dr Coupe

330-horsepower 3.7L V6 6-speed manual RWD

21321 mi

US $1300
brought car in because clutch felt like it was slipping engaging 1st gear and during shifts. dealer confirms car requires new clutch but NOT flywheel. not covered under warranty. when asked why it failed so soon, they replied "that's typical on this car" 
19000 mi Clutch failed again, identical to June 2008 repair issue on this vehicle. Bad slave cylinder. 
300 mi warranty repair. rear axle click. rear splines were removed, lubed, re torqued and good to go. chirp/click noise dissapeared. however i am only at 2300 miles now. 
2000 mi There was a pinging noise that came from underneath the vehicle when I shifted into first gear. I took the vehicle to Infiniti, where they told me that there was a recall that was extended into the 08 model for the rear axle. After the repair the pingin 
7000 mi Rear axle "chirp", repaired via TSB. 
40000 mi

US $61
Clutch failed to release on uphill start. Bleed master clutch cylinder. Took very long time to repressurize. Dealer replaced master and slave clutch cylinders. 
64000 mi

US $750
Seals in clutch slave cylinder failed to hold/pressurize fluid. Replace part, clean all internal clutch parts of oil. Flush fluid. 
54000 mi 6spd manual was noisy at idle and a bit clunky. Replaced transmission. Tpms light was on and throwing a code. New bcm. 

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2008 Infiniti G 2dr Coupe

330-horsepower 3.7L V6 5-speed shiftable automatic RWD

29000 mi Clicking noise coming from rear axle. Axles were removed and re lubricated to solve the problem. 
33000 mi Hesitation when manually shifting to 1st gear. Could replicate problem but could not find solution. 

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2007 Infiniti G

Engine not specified

54000 mi Gear shifter assembly replaced. 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 6-speed manual RWD

4000 mi Clutch failed. Fully depressed and would not come back up. Had to be towed to dealer. Car was not safe to drive. Diagnosis -> Air somehow got into clutch cylinder (Not sure if Master or Slave). They bled the air from the system and it's fine now. 
4000 mi Leak in slave cylinder of clutch (Manual transmission) Was unsuccessfully diagnosed and not repaired properly in August. Had to come back in September. Parts ordered and installed. Repair took 3 days. 
5000 mi Clutch losing pressure AGAIN. Previous TWO repair attempts were only temporary solutions. I had to involve Infiniti corporate. The dealership had to wait for a part from Infiniti corporate. There's now a recall on the clutch. 
32000 mi Manual Transmission grinds when shifting quickly into 5th gear. The dealer claimed they could not duplicate. 
81500 mi

US $2300
Clutch, flywheel and pressure plate needed replacement, mechanical failure. 
42000 mi 6-spd manual grinds or feels notchy when shifting from 1st to second or second to third. Problem is intermittent and dealer said was normal :( 
73000 mi

US $3900
Clutch, flywheel, clutch hydraulics, etc 
94000 mi

US $2000
Slave cylinder broke in manual transmission. Replaced clutch while inside transmission, which is why the repair cost was as much as it was. 
186500 mi

US $843
Slave cylinder broke. They had to lower the transmission to get to it. 
62000 mi

US $449
The Clutch Master Cylinder went out and needed to be replaced. The only part available that would fit had to be ordered from the Factory and was delivered by truck to the Infiniti Dealership in Fresno and then delivered to auto shop. 
66300 mi

US $3504
The entire clutch system had to be replaced. 
11000 mi Clutch plate TSB. 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic RWD

12000 mi Occasional rough shifting at light throttle around 20mph. 
79000 mi

US $120
Shifter Assembly - not working for manumatic. 
86000 mi

US $450
Lost tiptronic sensor for downshifting on the console. Paddles work fine and so does D & DS modes. 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic AWD

114000 mi Sold car rather than continue with old car and boot repair 
16000 mi Surging and hesitation in transmission. 
66000 mi Transmission valve body replaced to address 40MPH shudder issue 
34000 mi Replaced transmission under warranty 
55000 mi

US $700
torn cv boot, replaced the FR axle 
46000 mi Transmission was failing. Replaced under 6 year power train warranty 

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2007 Infiniti G 2dr Coupe

293-horsepower 3.5L V6 6-speed manual RWD

16920 mi Rear axle clicked when speeding up or slowing down. 

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2006 Infiniti G 4dr Sedan

298-horsepower 3.5L V6 6-speed manual RWD

110000 mi

US $1000
replace clutch, flywheel and related components. 
117180 mi

€200
The car clutch was replaced at Nissan dealer and with OE; clutch set with OEM flywheel and still some week the clutch still made smell like it was burning cluch.Nevertheless i drove smoothly and I do not live on clutch 
47000 mi Clicking axle TSB 
90825 mi

US $466
Left rear wheel bearing 
94000 mi

US $295
Both front wheel bearings replaced 
98738 mi

US $382
Right rear wheel bearing was bad 
126000 mi

US $93
Replaced clutch slave cylinder. When the clutch/transmission area got hot, the clutch engagement point would get lower and/or the pedal would not return. Slave cylinder close to exhaust. 
130000 mi

US $93
Replaced clutch slave cylinder 
92000 mi Sticking clutch pedal in hot weather. Clutch slave cylinder and clutch fluid replaced. 
172000 mi leaking rear differential seal when traded 
55780 mi

C $2300
original clutch was slipping out, design prone to premature mechanical failure. inspection afterwards found clearly failing, barely avoided more severe damage. replaced original dual mast clutch with aftermarket single mast clutch and flywheel (exedy). 
61000 mi Dry Axle ticking sound, repaired via TSB procedure with grease between axle and wheel hub. 

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2006 Infiniti G 4dr Sedan

280-horsepower 3.5L V6 5-speed shiftable automatic AWD

148000 mi

US $80
Replaced torn passenger side inner cv boot. 
83000 mi

US $1000
fixed something that caused squeakiness while turning, don't recall name 
47740 mi A cyclic whining noise from drivetrain notice by driver. Shop interpreted that as uneven front tire wear. Tires changed. Alignment done. Noise still there. 
85000 mi

US $1000
Rear suspension member leaking. Differential mount bushing leaking fluid. Replaced rear suspension main member. Inner dust boot torn. Replaced right front inner C/V boot 

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2006 Infiniti G 2dr Coupe

298-horsepower 3.5L V6 6-speed manual RWD

35000 mi Rear Axle clicking. Dealership declined warranty repair because I changed the springs to aftermarket and this voided warranty. Repair was about $300 and was not worth it to me because it was just a annoying sound. 
38000 mi Fixed TSB rear axle click. relubed rear axles and replaced hardware. 
31000 mi on hard shifting the clutch pedal would stay stuck to the floor. first dealer told me i didnt know how to drive they then replaced slave cylinder and i have not had an issue again. but now when car is in neutral it makes awful noises 
70000 mi

US $400
Clutch had worn out. Replaced it along with lighter flywheel. 
54000 mi

US $580
I took the car in for service because I was having a great deal of difficulty shifting. The diagnosis was bad synchros in the transmission and was replaced under warranty, however I had to pay for the replacement of the clutch assembly. Clutch pedal was sticking constantly. The pedal bearing assembly was replaced to resolve the problem. 
64000 mi clutch works fine but clutch pedal sticks - pull up with foot especially in warm weather maybe just needs lube 

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2006 Infiniti G 2dr Coupe

280-horsepower 3.5L V6 5-speed shiftable automatic RWD

31000 mi Clicking rear axle during park to reverse and reverse to drive. 
50356 mi 1.replaced rear axle spline 2.left door power window motor replaced 3.driver seat cushion replaced 4.battery replaced 
84000 mi

US $2000
replaced rear differential 

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2006 Infiniti G 2-door

6-cylinder manual 2WD

55000 mi 5th gear stopped engaging. I suspect synchro was bad. Dealer replaced transmission with no further explanation. 
31000 mi Clicking in rear end. Said it was a normal problem and was fixed with a lube job. 

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2005 Infiniti G

Engine not specified

45000 mi Axle Click repaired. 

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2005 Infiniti G 4dr Sedan

298-horsepower 3.5L V6 6-speed manual RWD

74000 mi

US $200
replaced clutch cylinders and adjusted clutch due to spongy clutch feel. Replaced transmission lube with Redline synthetic, really smoothed up shifting. 
26000 mi Rear axles make clicking noise. 

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2005 Infiniti G 4dr Sedan

280-horsepower 3.5L V6 5-speed shiftable automatic RWD

77000 mi

US $500
Differential Issues, replaced 

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2005 Infiniti G 4dr Sedan

280-horsepower 3.5L V6 5-speed shiftable automatic AWD

119000 mi

US $300
Replace sensor w dealer part 
101000 mi

US $350
Replacement of passenger axle 
46500 mi

C $800
Transmission pan was starting to leak. Pan and gasket replaced, and 5 quarts of ATF added. 
38000 mi CV boot broke, needed to replace axle. 
87000 mi

US $1000
axle, likely wear and tear rear differential failed. can NOT understand why. diff fluid was changed every 30K miles. 

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2005 Infiniti G 2dr Coupe

298-horsepower 3.5L V6 6-speed manual RWD

102000 mi

US $2800
clutch replacement after having an aftermarket clutch put on. 
18000 mi ITB05-002b. Both rear wheel areas exhibited clicking noises during starting from a stop, both forward and reverse directions. Repaired via ITB05-002b instructions -- dealer applied lubrication to driveshaft flanges. 
35000 mi

US $200
Dealer couldn't find clutch rattle when pedal pressed in. Probably release bearing, left it alone. Release bearing - replaced under warranty 
16000 mi Clutch Pedal wont fully release 
45000 mi Clicking noise from rear of vehicle. It was deemed that the rear axles were making the noise and there was a TSB regarding the issue. 
38000 mi Loose rear axel bolts. 
59000 mi Gear grinding.. needed new transmission, etc... 
60000 mi

US $400
Clicking/groaning from rear axle when starting from a stop, esp'ly when changing direction. Performed tech bulletin ITB05-002b, including all new hardware (bolts, etc). Problem was solved. Took 3 days to get the hardware from Nissan. 
37000 mi defective manual transmission replaced under OEM warranty. 

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2005 Infiniti G 2dr Coupe

280-horsepower 3.5L V6 5-speed shiftable automatic RWD

67000 mi right rear drive shaft required replacement 

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2004 Infiniti G

Engine not specified

66000 mi

US $950
Harsh lockup of torque converter 

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2004 Infiniti G 4dr Sedan

260-horsepower 3.5L V6 6-speed manual RWD

63000 mi

US $3500
I was told clutch slave cylinder is leaking. Need new clutch (possibly flywheel also).  
66000 mi Clutch slave cylinder leaking when sold.  

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2004 Infiniti G 4dr Sedan

260-horsepower 3.5L V6 5-speed shiftable automatic AWD

200000 mi

US $3000
Front drive shaft 1200 
40000 mi

US $400
Transmission was acting up. 
79500 mi Differential leak - replaced gasket 

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2004 Infiniti G 2dr Coupe

280-horsepower 3.5L V6 6-speed manual RWD

13640 mi Noticed that the AWD did not work (rear wheels only) when the car got stuck on snow. Brought the car to the first dealer, who insisted that nothing was wrong with the car as the computer says "it's OK". Obviously not having AWD was not OK for me. Dealer replaced transfer case because the AWD system was not working. First dealership we brought the car to had claimed there was no problem because the computer said "it's OK" 
18000 mi Rear Axles re-greased. Car would 'click' when moving at low speed. Rear axles were re greased. This is known issue with published TSB, and was fully covered under warranty. 
55180 mi Clutch throw out bearing, transmission winding and grinding gears in 3rd sometimes. 

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2004 Infiniti G 2dr Coupe

280-horsepower 3.5L V6 5-speed shiftable automatic RWD

24384 mi Clean and lub rear axle which was making clicking noise under warranty. Replace bushing for front compression rod under warranty  

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2003 Infiniti G 4dr Sedan

260-horsepower 3.5L V6 6-speed manual RWD

39000 mi

US $325
1) Vibration in MT shift assembly; spring replaced. 2) Clutch master cylinder replaced. 
46000 mi Replace 6MT because of high-pitched whine in 6th gear. Investigation showed metal flakes in trans fluid. 
61000 mi

US $3800
Transmission stopped working. Had the car flat bedded to transmission shop. 

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2003 Infiniti G 4dr Sedan

260-horsepower 3.5L V6 5-speed shiftable automatic RWD

102300 mi

C $400
Remove and replace front drivers side compression rod. 
156500 mi

US $3500
transmission failure 
64000 mi

US $410
All gauges, air conditioning, and transmission stopped working. Was caused by an error in the transmission which was still under the extended warranty. Dealer said it was "wear and tear" but after some debate, they accepted it as a warranty item. Repla 
148800 mi

C $700
Had to change both Oil lines going from trasmission to oil cooler in raqdiator, they were leaking! Had a transmission flush done at the same time and added synthetic oil!~ 

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2003 Infiniti G 2dr Coupe

280-horsepower 3.5L V6 6-speed manual RWD

19220 mi replaced transmission (grinding 4th->6th gear & 5th->6th gear)  
29000 mi

US $500
replaced transmission 
80500 mi

US $1800
Manual transmission grinding in reverse and difficult to shift into 2nd and 3rd. Infiniti no longer makes parts for '03 transmission so had to replace entire transmission. 
120000 mi

US $1000
Clutch started making noise when depressed. Shop replace throwout bearing, pilot bearing and clutch. 
87000 mi

US $10500
Syncros in the Transmission Clutch and Pressure plate 

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2003 Infiniti G 2dr Coupe

260-horsepower 3.5L V6 6-speed manual RWD

47000 mi Third gear grinds (completely shot) and whining noise out of transmission when cold. This is third transmission (6MT G-35) Warranty replaced transmission 2x and Clutch 1x. Car out of warranty for this by 5 months but under mileage by 25k. Mechanic at dealer stated clutch needed replacing along with transmission. Same clutch problem as when purchased. Replaced by dealer under warranty 1x. Problem still occurs, Infiniti refused to replace. Escalated to Consumer Affairs, still declined. 
49000 mi

US $2500
Third gear went bad on 6 speed manual transmission. Took about a ten months of negotiations and involving the state attorney general's office of consumer affairs.  

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Infiniti G Transmission Problems

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