Scion xB Scion xB

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Scion xB Engine Problems and Repair Histories

Scion xB repairs by problem area

Engine (38%)

Transmission and Drivetrain (5%)

Brakes and Traction Control (13%)

Suspension and Steering (10%)

Electrical and Air Conditioning (16%)

Paint, Rust, Leaks, Rattles, and Trim (9%)

Other (9%)

Chart based on 422 repairs.

Scion xB engine repair cost distribution

$2500+ (7%)

$1000 - $2499 (9%)

$500 - $999 (11%)

$100 - $499 (54%)

< $100 (19%)

Chart based on 105 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2011 Scion xB 4dr Hatch

158-horsepower 2.4L I4 5-speed manual FWD

8500 mi Starting issues continue & Scion cannot find problem (had it a week). Dealership agreed to make me deal to exchange this xB for a new xB due to starting issues I kept having. Thank you to SMART MOTORS Scion! 

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2011 Scion xB 4dr Hatch

158-horsepower 2.4L I4 4-speed shiftable automatic FWD

91250 mi Car failed oil consumption test replaced pistons piston ring s and oil pan gasket bearings and plus and cat converter 

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2010 Scion xB 4dr Hatch

158-horsepower 2.4L I4 5-speed manual FWD

28000 mi Faulty water pump discovered by pink line on hood liner where coolant sprays up. Covered under warranty. 
59000 mi

US $225
Rubber AC belt had a hole worn in to it from the engine pulley. By design the rubber hose is in very close proximity to the engine pulley. Replaced hose and recharged AC system. Will zip tie hose away from pulley. 

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2009 Scion xB 4dr Hatch

158-horsepower 2.4L I4 5-speed manual FWD

65000 mi

US $50
Water pump leaking. 
46000 mi

US $600
replaced clutch 
55000 mi Using 1.5 quarts between 5k mile oil changes. Update: switching from Pennzoil (mechanic said it's crappy oil) to GTX seems to have helped. 
72700 mi

US $88
car started to die wile underway (accelerating) usually first in morning. jose cleaned throttlebody throat, replaced nasty spark plugs (4) changed oil. $88.00 total 

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2009 Scion xB 4dr Hatch

158-horsepower 2.4L I4 4-speed shiftable automatic FWD

58000 mi

US $600
Water pump leaking 
26000 mi Replaced leaking water pump under warranty. No charge. 
38000 mi After returning from a 1500 mile trip I noticed coolant sprayed under the hood. The water pump was leaking. Dealer repaired under warranty. 
80700 mi My Scion is using about 2 or more quarts of oil between oil changes. 
123000 mi Scion (Toyota) decided to give what they call a warranty enhancement for the excessive oil consumption on the scion xb's that fit in that catagory. I am in the process of having a oil consumption test done to see if they will repair mine. 
130000 mi Toyota repaired my xb of the excessive oil useage that it was having , the pistons and rings were changed out. 
131000 mi

US $230
replaced 1 ignition coil replaced remaining 2 old ignition coils. One turned out to be days from failure (case already cracked) 
50000 mi

US $400
Coolant leak from water pump 

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2008 Scion xB

Engine not specified

16000 mi Ignition system failed, constant engine misfires. Replaced complete ignition system under factory warranty. Loose belt causing squealing, dealer claimed there was no issue. 
28000 mi

US $350
Failed ignition system, replaced coilpack and associated parts. 2nd time this has been repaired.  

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2008 Scion xB 4dr Hatch

158-horsepower 2.4L I4 5-speed manual FWD

136000 mi

US $1200
Fuel Intake-couldnt get fuel to go into the gas tank! 
101000 mi

US $276
Water pump weeping on and off (weep hole). Was covered under Extended warranty but cost $50 deduct. 
54000 mi Water pump failed and drained 3/4 of coolant all over engine bay. Dealer replaced water pump, accessory belts damaged by coolant and re-filled coolant. 
61000 mi

US $65
Water pump leak, pump was replaced under an extended warranty I bought at inception. 
13000 mi Engine running rougher than had been, whether in idle or neutral. Small revs of engine to increase RPM did not remove problem. Was told it only ran rough when AC on and not when it was off. Car runs rough in both cases, more when AC on. 
69000 mi

US $60
dealer said water pump as getting ready to go, due to white streaks seen on underside of hood above pump. However, after I removed the streak, it has yet to return and the pump continues to work as of Jan. 15, 2013. 
158700 mi Oil Consumption fail- new pistons 
44000 mi Water Pump leak, powertrain warranty paid for replacement. 

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2008 Scion xB 4dr Hatch

158-horsepower 2.4L I4 4-speed shiftable automatic FWD

93300 mi Burning lots of oil 
130000 mi

US $375
Water pump needed replacement. 
48000 mi Water pump was leaking, water pump was replaced 
1100 mi Short in main computer module. Entire module was replaced. 
108500 mi

US $800
water pump leak 
110000 mi

US $225
Ignition coil #4 failed. Toyota had a TSB on the coils,but would not honor replacement of all the coils. Shame on Toyota for not covering the repairs. Now I am waiting for the other coils to fail. 
82000 mi

US $43
Car is undergoing an excessive oil consumption test connected to a warranty extension for a piston/ring problem affecting many vehicles. 
86000 mi

US $100
Car was recalled for replacement of pistons and rings which caused excessive oil consumption. This was a general recall by Toyota for multiple models using the same 4 cylinder engine. 
101000 mi

US $515
cylinders misfiring, replaced ignition coil, spark plus and replaced serpentine belt. Performed tune-up. 
65000 mi

US $300
Water pump replaced 
47000 mi

US $218
Hiland Scion is worthless. Charged me $40 for analysis of a bad coil which I already knew. Had no repair parts on hand. I drove 160 miles in freezing rain and snow on three cylinders for nothing. Called Scion complained about Hiland Scion. Scion told me to take it to Deery Toyota for repair. Scion said they would reimburse my repair costs. Haven't seen a check yet. Hiland Scion really sucks. 
2000 mi

US $100
ignition coil d misfiring misfiring ignition coil b 
30000 mi Saturday: engine check, skid control lights on, Anti skid brakes erratic. Appoint made for Monday. Monday: O2 sensor defective, part on order. Tuesday: Part replaced, warning lights out, all functions working,  
8000 mi Defective coil. 
41000 mi Check engine light. Defective ignition coil, #1 cylinder. Coil replaced. 3 days later, check engine light. Defective coil cylinder #3. Got whomped by Toyota. $105 per coil. 
14000 mi Water pump leaking fluid and problem with serpentine belt (car was idling loudly). Replaced water pump, belt, and pulley. 
2000 mi Terrible gas consumption 17 mpg and they said was me, while I have a Matrix and Camry with same engine and no problem at all 
22000 mi A pink spray line from leaking coolant was noticed on interior of hood and in engine. Toyota knows about water pump problem with 2AZ-FE engine so there was no denial from dealership about possible faulty water pump. Fixed under warranty. 

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2006.5 Scion xB 4dr Hatch

103-horsepower 1.5L I4 4-speed automatic FWD

61000 mi

US $306
The shop ended up re-installing the old alternator and putting in a new water pump instead - they had misdiagnosed noise. 
78000 mi

US $346
Car Overheating - Water Pump & Thermostat replaced 
128000 mi

US $350
Radiator replaced 

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2006 Scion xB 4dr Hatch

103-horsepower 1.5L I4 5-speed manual FWD

128700 mi

US $132
Replace belts 
76000 mi

US $425
Broken transaxle mount. It also caused an exhaust leak, which is what prompted me to take it in. 
120500 mi

US $154
replaced the radiator. Not too tough, although very tight working space. 2nd part to go bad in over 120,000 MILES. 
125300 mi

US $245
Replace serpentine belts 
109000 mi

US $290
Water pump leaking and serpentine belts replaced. 
68000 mi

US $50
Car would not start after a cold snap. Battery, fuel, spark okay. Mechanic diagnosed fuel flooded engine due to short running time followed by cold snap resulting in pooling of gas in cylinders. 
94700 mi O2 sensor 
24300 mi

US $210
Leaking gasket at the exhaust manifold. 
40000 mi Knock sensor went bad 
45000 mi

US $200
Check engine and other idiot lights came on. Happened once before but they cleared it and did not replace any parts. This time they replaced the faulty Oxygen Sensor. 
49000 mi

US $350
Exhaust system failed from cat back (not including catalytic converter). replaced pipe, muffler, and tip. 
105000 mi Water pump leaking. Had taken car in for new belts a month ago. Then took in for new brakes last week and dealer reported that water pump was leaking. Strange they didn't notice when belts were replaced. 
65000 mi

US $880
Check engine light, VSC and TRAC OFF button illuminated. Strong fuel smell coming from car. Shop diagnosed error codes related to evap system. Found water in fuel line. Cleared water and error codes. All systems working. Same problem as previous trip to non-dealer repair shop. Dealer diagnosed broken fuel neck pipe, ordered part and installed to correct problem. Fuel filler neck replaced to fix leak. Charcoal canister failed also and was replaced for a total repair cost of ~$800. I have contact Scion Customer Experience and requested refund of repair costs. Known problem and 3rd canister in 3 years. 
101000 mi

US $115
replaced ignition coil #2 after check engine light and rough idle. found all ignition coils leaking fluid. 
30000 mi

US $50
CEL, did not have info left in the computer by the time I got to the shop two days later.  
33000 mi cam gear replaced on VVT.  
47000 mi water pump replacement, had not failed but was leaking. 

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2006 Scion xB 4dr Hatch

103-horsepower 1.5L I4 4-speed automatic FWD

21000 mi Maintenance required dummy light came on. No known reason, reset by dealership. 
56000 mi

US $20
Radiator leak. fixed it with alumaseal. May replace radiator later.  
71000 mi

US $200
radiator sprung a leak, replaced radiator 71344 miles. 
95000 mi

US $37
Had to replace the gasket and bolts on the exhaust pipe to the exhaust manifold flange. 
97000 mi

US $461
Replace belts and water pump. It was too hard to replace water pump, was better for dealer to do work and use OEM parts. Took 3 hrs to complete. Classic Toyota / Scion Mentor, Ohio great service no problems 100% happy. 
105000 mi

US $20
Serpentine belt broke. Pita to loosen alternator. Fairly easy to replace belt once wheel and shroud removed 
170000 mi Noise from fan belts 
139000 mi

US $1600
Ac belt noisy 
42406 mi Replace throttle position sensor 
43606 mi Software upgrade 
Replace gas cap assy 
90500 mi

US $350
Replace mass airflow sensor 
139000 mi

US $1000
Fuel filler neck and Evap canister leak 
83000 mi

US $20
replace drive belts 

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2005 Scion xB 4dr Hatch

108-horsepower 1.5L I4 5-speed manual FWD

98000 mi TRAC OFF CEL & VSC ILLUMINATED. :-( PULLED NEGATIVE BATT CONNECTION, AND RELISED WHEN I WAS ABOUT TO HOOK THE BATTERY BACK UP, THAT A VAC HOSE HAD POPPED OFF ON TOP OF THE MASS AFS... REATTACHED HOSE, HOOKED UP BATTERY, STARTED, LIGHTS OFF 
110000 mi

US $33
Noticed water pump weep hole, "weeping" and slinging coolant on the underside of the hood, not good. Car never got hot, replaced water pump, flushed cooling system, refilled with Toyota extended coolant, job done. What a PITA. 
63000 mi Idle Air Control was bad. 
64000 mi Idle Air Control went out two weeks after it was originally replaced. 
156000 mi Replaced original power steering belt that broke and was left with no power steering. While at it also replaced the alternator belt. 
399600 mi AC/Water pump belt broke. Engine overheated. Replaced belt & engine. Used engine from salvage yard (84K=$617) mechanic cost $1200. O also replaced clutch since it has over 200k miles of use. 
404000 mi

US $1950
Cracked head; replaced with one purchased from Amazon.com replaced clogged catalytic converter; purchased at Amazon.com 
106000 mi

US $1900
Exhaust system. cat back 
120000 mi

US $400
Check engine light went on, and was determined to be both a oxygen sensor and bad gas cap. 
137000 mi

US $165
Evaporative system error. Still not fixed. Check engine light came on again. 
137000 mi

US $800
Charcoal canister was not functioning and set off the engine light. Replaced part. 
120000 mi

US $16
Oil dipstick worn out, cracked in two pieces 
115000 mi

US $40
I replaced water pump 
152000 mi

US $160
Exhaust flange rusted through & joint started leaking. Replaced resonator pipe, muffler, gasket & clamps. 
49000 mi

US $75
Replaced downstream oxygen sensor. 
85100 mi

US $50
engine mount broke the transmission/engine mount under the engine in the hood but probably because of my crack pot mechanic since he only charged $50 to fix it 
127000 mi

US $130
Bolts holding lower driver side engine mount sheared off, one bolt broke off in the hole, the other two stripped out had to drill out and retap the holes to a bigger gauge and finer thread 
216000 mi

US $340
muffler flange came loose but was repairable. ignition coil went out on way to the mechanic lol coincidence. engine was burning 2 quarts of oil between oil changes did a engine flush and switched to 10w30 hopefully that will slow the burn. 
274000 mi tube between gas tank and solenoid in the EVAP canister became clogged could not pump gas 
286000 mi

US $740
Exhsust gasket on header flange wore out and melted my shifter cable so that it became stuck in first gear 
96000 mi

US $150
Changed rusted bolts on cat assembly. Replaced aftermarket muffler with stainless steel muffler assembly. No real problems. 
111700 mi

US $500
I have the infamous P420 error code. There are so many possible causes that it is hard to know where to start. Ever since the OEM muffler had been replaced with an aftermarket "tip" and cheap muffler, nothing but muffler leaks. 
125000 mi

US $120
Replaced exhaust using clamps no welds. Retained the catalytic converter. All of the clamp kits excluded bolts (needed), or the bolts were too short. 
46000 mi

US $550
Water pump getting noisy, replaced along with the usual 5k service. 

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2005 Scion xB 4dr Hatch

108-horsepower 1.5L I4 4-speed automatic FWD

67000 mi

US $32
CEL & Traction control light on. Problem was broken wires to MAF sensor. Replaced by owner. New connector was only $8, but each wire was $12! 
95000 mi

US $120
VVT malfunction, replaced VVT oil pressure switch. 
160000 mi

US $3500
Fried #2 piston do to lean conditions reported by IAC Valve. 
178000 mi

US $25
Running rough, replaced 1 coil pak. 
65000 mi

US $600
Charcoal canister had to be replaced. 
85000 mi New oxygen sensor. 
40000 mi

US $150
Loud exhaust noise coming from under the car. Diagnosed as rusting of pipe near exhaust manifold. It was replaced by mechanic. 
56000 mi

US $95
Part of the forward exhaust corroded. Shop cut it out and soldered in a replacement. 
59000 mi Check Engine light came on. Code for Evap system leak. Replaced the gas cap. 
60000 mi

US $480
Replace fuel evap canister 
133000 mi

US $65
Installed sleeve over rust-perforated exhaust pipe section 
39000 mi

US $250
Water pump started making noise and small leakage noticed. 
149000 mi

US $359
Replaced cylinder coil 
173000 mi

US $70
Replaced 2 belts; power steering and another 
205000 mi

US $200
Ignition coil 
259000 mi failed Maryland emission due to catalytic converter 
263000 mi catalytic converter, 
55300 mi

US $265
would not accelerate; lost power on interstate; car kept bucking Front Oxygen sensor replaced 
150000 mi

US $250
replaced coil pack 
226000 mi

US $60
Replace thermostat 
58000 mi

US $50
rust through and leak on exhaust pipe 
138700 mi Bad ignition coil. Dash had check engine, abs cancel, skid control cancel. Frogged cyl 1 & 2 and confirmed. Ordered from California aftermarket and replacedn , under $20.00. 
29500 mi Have RS 2.o Exhaust fell off and was replaced with new RS2 DC sport exhaust 
59828 mi 1. two cracked drive belts 2. bad O2 sensor 3. exhaust leak at front gasket 

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2004 Scion xB

Engine not specified

90000 mi

US $4300
The check engine light came on when the overheating light came on causing a blown head gasket. 

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2004 Scion xB 4dr Hatch

108-horsepower 1.5L I4 5-speed manual FWD

98500 mi

US $1250
Replace catalytic converter 
222000 mi

US $80
Original muffler finally rusted out 
107000 mi

US $1700
Replace clutch, and front Brakes 
148000 mi

US $300
Failed ignition coil replaced. 
164000 mi

US $1000
Catalytic converter replaced. Oxygen sensors replaced. 
296000 mi

US $300
Knock sensor, plugs, belts 
326000 mi

US $475
Cat converter replaced. 
125000 mi

US $240
Coil failure # 1 cyl 
105000 mi water pump replacement 
199000 mi

US $2500
due to multiple check engine lights, needed to replace air flow sensor, O2 sensor, canister, fuel lines, and gas cap. 
220000 mi

US $140
CEL light indicated O2 sensors out. Both O2 sensors changed with Denso parts. Resonator pipe replaced due to crack. 
240700 mi

US $200
Ignition key no longer worked. Ignition lock replaced. 

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2004 Scion xB 4dr Hatch

108-horsepower 1.5L I4 4-speed automatic FWD

153700 mi

US $300
Overheating - although thermostat was working correctly. Replaced fan and temp sensor. Ten days because of miscommunication. 
22500 mi

US $100
Replaced donut between exhaust manifold and down pipe. First and only repair! 
45000 mi

US $156
Water pump was squelling badly, opened the hood and saw the water pump pully wobbling. Replaced water pump. 
70300 mi

US $300
Failed State Inspection for Emission, replaced surge valve and carbon cannister 
112000 mi

US $300
Check engine P0420. Just replaced catalytic converter only. 
151000 mi

US $375
Radiator leaked and was replaced. 
171000 mi

US $160
Replaced power steering belt and other belt due to squeaking. 

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Scion xB 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 Scion xB problems occur, check out our car reliability stats.