2012 Ford Mustang Ford Mustang 2012

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2012 Ford Mustang repairs by problem area

Engine (9%)

Transmission and Drivetrain (21%)

Brakes and Traction Control (8%)

Suspension and Steering (26%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (2%)

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Chart based on 115 repairs.

2012 Ford Mustang 2dr Coupe

444-horsepower 5.0L V8 6-speed manual RWD

3298 mi The differential ring and pinion was just replaced (at 5320km) due to pitting, along with all the bearings for good measure. This was to fix a noise issue. 
12000 mi

US $200
Developed leak and had to be repaired. 

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2012 Ford Mustang 2dr Coupe

412-horsepower 5.0L V8 6-speed manual RWD

9000 mi Had unbearable noise from rear end. Dealer change out pinion bearings and axle bearings under drive train 50K/5yr warranty for my 2012 GT. 
12000 mi 8.8 rear end with 3:31 gears, had SECOND pinion bearing go out (replaced once already) causing severe rear end whine at 60+ mph. Repaired under drivetrain warranty. 
18000 mi Had the rear axle vent breather replaced via a TSB for the 2011-14 Mustang GTs. Rear axle vent breather nipple leaks significant amount of gear oil onto axle. Dealer replaced with TSB hose and catch-can for rear axle vent. 
27000 mi Constant gear whine in every gear but 5th. That was very annoying, even if the transmission oil reports came back OK. 
10000 mi Vent valve on rear axle leaking differential fluid. Fluid found on drivers side axle and differential housing. Repaired under TSB 12-8-15. Dealer added adhesive to threads on vent valve and checked fluid level. 
35000 mi 2nd and 3rd gear synchronizers replaced. 
8000 mi Transmission difficult to shift into 2nd and/or grinding. Most noticeable for the first few minutes after a cold start, and on days when the ambient temperature was low. Dealer replaced transmission fluid with updated fluid per TSB. 
3000 mi Transmission became diffucult to shift, sometimes not going into gear. Dealership replaced transmission fluid as per a ford tsb. Shifting is better but not great like when new. Transmission noticeably noisier after fluid swap also. 

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2012 Ford Mustang 2dr Coupe

412-horsepower 5.0L V8 6-speed automatic RWD

82000 mi

US $390
Car in limp mode (wrench light). Fouled sensors in transmission replaced, fluid replaced 
29000 mi Replaced transmission gear selector assembly under warranty. 

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2012 Ford Mustang 2dr Coupe

305-horsepower 3.7L V6 6-speed manual RWD

38000 mi

US $100
I noticed a stain on the rear end & axle. Repair wa replacement of the final drive/differential vent assembly. 
39000 mi The rear end/final drive leaked again. Replaced seals. Still a problem. Currently back in shop. 
40500 mi

US $100
Essentially all internals for the rear differential were replaced. I have reason to believe (but cannot prove) the dealership techs improperly reassembled the differential while attempting the previous repair. 
23960 mi Hard shift into 2nd gear. First attempt was a fluid replacement as there was a TSB that recommended a lighter fluid. That did not resolve issue so they replaced the transmission with a new part. 
6746 mi Sealed the leak. 
16000 mi Leaking from rear axle. Replaced leaking vent tube. Valve assembly - vent. 
17700 mi this was a reoccurring speed sensitive squeak from drivers rear axle. The shop greased caliper 1x I greased 1x but came back Shop replaced bent axle under wtty partially because I keep friendly with my sales person. I diagnosed for them. 

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2012 Ford Mustang 2dr Convertible

412-horsepower 5.0L V8 6-speed manual RWD

27000 mi Manual transmission grinds on cold days going from 1st to 2nd gear. Had taken it to dealer in Jan and they said all was fine. Gave them the Technical Service Bulletin this time (thanks TrueDelta). Covered under warranty. 

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2012 Ford Mustang 2dr Convertible

305-horsepower 3.7L V6 6-speed manual RWD

3000 mi manual transmission notchy and often difficult to shift into first gear when car was moving 

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2012 Ford Mustang 2dr Convertible

305-horsepower 3.7L V6 6-speed automatic RWD

40000 mi Differential Leak 

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2012 Ford Mustang Transmission Problems

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