2003 Subaru Legacy Subaru Legacy 2003

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2003 Subaru Legacy repairs by problem area

Engine (33%)

Transmission and Drivetrain (18%)

Brakes and Traction Control (5%)

Suspension and Steering (14%)

Electrical and Air Conditioning (17%)

Paint, Rust, Leaks, Rattles, and Trim (12%)

Other (0%)

Chart based on 93 repairs.
See TSBs and recalls for the 2003 Subaru Legacy.

2003 Subaru Legacy engine repair cost distribution

$2500+ (7%)

$1000 - $2499 (19%)

$500 - $999 (19%)

$100 - $499 (37%)

< $100 (19%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 27 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Subaru Legacy 4dr Wagon

165-horsepower 2.5L H4 5-speed manual AWD

164000 mi Not clear. Failed state emissions test, mechanic could find nothing wrong or recorded in computer. Check engine light is off, so I will try the inspection again. 
154000 mi

US $110
Front oxygen sensor failed.  
167000 mi

US $800
Replace clutch, machine flywheel, replace transmission mounts, replace engine mounts. Replace rusted out oil pan, replace bad valve cover gaskets, replace timing belt and pulleys, replace water pump. Dealer changed timing belt at 100k miles, but didn't replace pulleys, bearings were shot in two of them. W/pump semi preventive 
172000 mi

US $350
Head gasket failed, causing a 1 quart per 100 mile oil leak. Removed engine myself, had heads machined, installed new multi-layer steel head gaskets. 
147720 mi

C $150
Pipe came off flange. It broke at the weld. Had to hold the pipe with a strap bescause it was touching the road. 
148800 mi

C $150
Pipe of muffler broke at another welded flange. Not the same as july. Again had to hold the muffler with a strap... 
101680 mi

C $560
Check engine light. Error code indicated seized "valve for fuel fumes"?? Part was replaced ($300 with tax and labour) 
111600 mi a new cat converter,  

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2003 Subaru Legacy 4dr Wagon

165-horsepower 2.5L H4 4-speed automatic AWD

141000 mi

US $135
Blown head gasket leaking oil and coolant. My mechanic put in a can of BG cooling system sealer, and I keep an eye on the coolant. The engine now has a noise besides the piston slap that sounds like a bearing knock. 
141300 mi Accelerator pedal sticking open, engine holding 3500 rpm. Tried WD-40 on cable at both ends, didn't work. Packed high temp grease on engine end of accelerator cable and throttle return springs, fixed problem. 
156000 mi Replaced rear muffler. Engine never fully repaired after head gasket blew. 
119200 mi

US $950
timing belt,brakes,plugs,wires,valve cover and spark plug gaskets. 
121000 mi

US $1400
I had the rear head gasket replaced also new front rotors and brakes I had my oil pump repaired and rebuilt. And I also had aa systems check the car. 
83700 mi

C $3000
head gaskets; timing belt 
89360 mi

C $4000
engine heads needed to be replaced. as a result a engine rebuild was necessary including timing belt etc 
109120 mi

C $280
Replace crankshaft pulley and belts 
36580 mi

C $800
left side head gasket issue, Subaru Canada assisted with covering parts and half labour. leaking coolant under the car  
37200 mi

C $95
Vaccuum sensor needs replacement 
78000 mi

US $360
upstream O2 sensor. 
96000 mi

US $1500
Head gasket was leaking oil around the front of the engine. Had to have head gasket replaced. Also water pump replaced, and themostat replaced. 

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2003 Subaru Legacy 4dr Sedan

165-horsepower 2.5L H4 5-speed manual AWD

134000 mi

US $1300
Head gasket 
95000 mi

US $300
Replaced water pump for third time in 2 years 
119660 mi

C $1000
Knocking sound in engine and transmission seal oil leak 

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2003 Subaru Legacy 4dr Sedan

165-horsepower 2.5L H4 4-speed shiftable automatic AWD

88800 mi

US $230
Check Engine light came up. I took the car to a shop to check it out. The oxygen sensor had to be replaced to fix check engine light. 
93000 mi

US $630
replaced catalytic converter and part of exhaust pipe. 
127000 mi The car developed coolant leak, had to add few ounces every week. Given that the leak was not apparent, assumed that it was notorious head gasket problem. 

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2003 Subaru Legacy 4dr Sedan

165-horsepower 2.5L H4 4-speed automatic AWD

115000 mi

US $300
POS subaru head gaskets. common issue. subaru fix is Subaru branded coolant stop leak. never ever a subaru again. Have 1991 BMW no head gasket issues with 325k miles. Many other cars with more miles and had no head gaskets issues. 

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See TrueDelta's information for all Sedans and Wagons.
See TrueDelta's information for all Subaru models.

2003 Subaru Legacy Engine Problems

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 2003 Subaru Legacy problems occur, check out our car reliability stats.