2008 smart fortwo smart fortwo 2008

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2008 smart fortwo repairs by problem area

Engine (28%)

Transmission and Drivetrain (16%)

Brakes and Traction Control (5%)

Suspension and Steering (2%)

Electrical and Air Conditioning (27%)

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

Other (10%)

Chart based on 389 repairs.

2008 smart fortwo engine repair cost distribution

$2500+ (15%)

$1000 - $2499 (9%)

$500 - $999 (17%)

$100 - $499 (54%)

< $100 (4%)

Chart based on 46 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 smart fortwo 2dr Hatch

70-horsepower 1.0L I3 5-speed automated manual RWD

19840 mi gasket on fuel cap replaced 
25420 mi sometimes would not go into reverse and sometimes would not go into park 
58900 mi fuel pump @42psi new plugs and filters and still will not run. Tries to start but just wont kick. 
58900 mi

C $2700
replace throttle valve, was stuck closed 
65100 mi

C $300
broken pipe needed complete exhaust system 
55000 mi

US $800
I could move the gear selector but the transmission would not select a gear and would beep. Moving forward in Drive (when it worked) would fix problem temporarily. Car fine after clutch reflash. 
89000 mi

US $1400
Muffler failed. Secondary air injection pump replaced. 
31000 mi

US $100
Oil pan gasket leaking. Replaced 
23300 mi

US $602
Neutral sensor defective 
19000 mi

US $580
fuel pump fuse blew, stranding me, on 3 occasions. Dealer easter egged it, selling me $559 fuel pump. Fuse blew again. Tested my old fuel pump, under head pressure, for over an hour at 14vdc. Pump refunded. Pinched wire-factory defect. 
49500 mi

US $3000
cylinder head replaced due to worn valve guides leaky oil pan 
50000 mi

US $50
Used 6 quarts of oil in 2 weeks, replaced the entire short block. 
56000 mi Wiring harness for O2 sensor chafing on hose from air pump. Wrapped harness in electrical tape, then ziptied a rubber hose around the harness to prevent further chafing. 
22000 mi

US $30
Secondary air valve replaced.  
19000 mi

US $130
Check engine light went on. Onboard computer diagnosed it. Took it to a non-Smart dealer who ordered then installed the part- an emissions control valve. Replaced defective emissions control valve. 
40000 mi

US $120
Check engine light, code P0455. "O" Ring on gas cap was misaligned. Once it was aligned, code cleared. 
9000 mi check engine light stayed on - required replacing emissions sensor on engine 
13000 mi

US $256
check engine light came on, dealer checked error code, related to a sensor that failed not covered under warranty, paid for parts ($48) and labor; in an out in about 1.5 hours, this car is serviced by MBenz dealer so labor rates are higher 
8000 mi

US $130
secondary air injection valve malfunction 
Reset the engine light. Not a problem. 
27000 mi

US $355
code p0442 - leak in evaporator emissions system replace purge valve. 
52000 mi

US $1019
new transmission mount needed 
71000 mi

US $238
Failed crank position sensor. Car rendered totally useless. 
42000 mi Cooling system leaked  crank shaft position sensor failed 
30000 mi

US $25
gas cap cracked, got new one installed by self. 
31700 mi

US $400
needed a muffler assembly due to break in connecting metal hose leading to carburetor, probably from bad pot holes on NJ roads shaking car a lot. 
25300 mi Muffler replacement 
96700 mi

US $2000
Replaced leaking valve gasket allowed oil to pool around spark plugs. Caused electrical malfunction. 
70700 mi

US $1200
Fuel mixture rich, determined two intake gaskets needed replacement 
74000 mi Sensors indicated excessive rich fuel mixture. This is a repeat of the earlier repair issue which was corrected initially but then returned after a month. The dealer corrected the issue again at no charge. 
1000 mi shift module replaced 
22000 mi Transmission and battery upgrade. 
48360 mi

C $170
Broken flex-tube. Replaced by welding in an after market one. Rest of exhaust and cat is in good condition. 
90560 mi

C $200
Exhaust system broken flex pipe. Dealer wanted to replace the whole system, got my mechanic to replace the flex for a small fraction of the price. 
76000 mi

US $130
Oxygen sensors clogged. Replaced engine air filter. The one I had installed was too dense. 
163300 mi

US $3000
The alternator belt snapped. This caused the heating pump to stop, too. Smart Roadside told me that driving was fine, but a few miles later, I'd fried the engine :( 
132300 mi

US $3000
oil leak 
33780 mi

C $209
Outside temp sensor failed. Was replaced. Unclear if repair successful. CEL came back on afterwards, the went back off. Need cold weather to test. 
34720 mi

C $503
Muffler flex pipe was broken. Loose and melting back bumper. Muffler was replaced. 
10000 mi

US $277
replaced failed purge valve 
14000 mi

US $393
muffler and tail pipe replacement 
27000 mi

US $1544
faulty gas cap 
14000 mi Intermittent clutch engagement problem. Did software update, and is OK so far. 
3000 mi Check engine light came on. Diagnosed as faulty switch over valve, which was replaced. 
9000 mi Needed a new fuel plug 
3000 mi Check engine light came on due to faulty secondary air system switch over valve. 
10000 mi Engine light came on and stayed on. 
12000 mi Gear shift stuck. Upgraded to 2.0, lubed shifter. 
5000 mi Airflow valve was sticking. This has been a common problem with the Smart4two cars. 
16000 mi Dealer replaced the secondary air injection valve. 
85000 mi

US $992
Alternator drive belt shredded which destroyed the oil pressure sending unit and an emission control line. 
4000 mi Air injection valve replaced. 
2000 mi The car shut itself off in hard left turns 3 times. 
3000 mi Secondary air injection valve faulty. P0410 
Engine light came on and was an emission valve. Repaired the next morning. 
3000 mi Error P0410 - Replaced Secondary Air Injection Valve. 
1000 mi Motor stopped as I was driving. Was able to restart immediately, after pulling over. Dealer found nothing wrong and no reason for the incident. 
7000 mi P0410 code shown on ScanGauge. Dealer replaced Secondary Air Injection Solenoid. 
4000 mi The check engine light came on. Owner's manual said not to drive it. The problem was a bad switch over valve. Valve ordered. 
8000 mi It was a repair for the check engine light that had come on previously. This visit was previously reported. A sensor had caused the problem and dealer replaced it on this visit. 
28000 mi

US $300
Check engine light came on and took the car to dealer. Issue was engine sensor and made car run sort of rough. Resolved with new sensor. 
52000 mi

US $780
Secondary air pump replaced. Took car to shop when check engine light came on. 
5000 mi Computer upgrade. 
10000 mi

US $202
Routine 10,000 mile service. They also did the Smart 2.0 upgrade - transmission reflash, new more powerful battery, shifter lube and gave out the new, updated owner's manual. 
56000 mi

US $350
replace cracked motor mount 
40000 mi

US $35
Secondary air valve bad. 
3000 mi Reflash of transmission shifting software, termed smart 2.0. This makes the transmission shift points different and allows changing to the paddle shifters from auto mode by pulling on the shifter. 
5000 mi Took car to dealership service dept. to get maintenance reminder reset after doing an oil & filter change in addition to changing the transmission oil. I could not get the reminder to reset using several suggested methods. 
16000 mi

US $100
Car was intermittantly throwing a P0410 code. The cel light was coming on more frequently. The secondary air valve was replaced and the computer reset. Concern appears to be resolved. 
10000 mi Engine light error #po410 replaced part no more problems. 2.0 update reprogrammed transmission, replaced battery.  
8000 mi Smart 2.0 software upgrade - enhance transmission to work like the 2009 transmission. 
22000 mi

US $97
Water in gas 
8000 mi Replaced Air injection module. 

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2008 smart fortwo 2dr Convertible

turbocharged 83hp 1.0L I3 5-speed automated manual RWD

44000 mi Check Engine Light X2 Codes failed O2 Lambda sensors. Necessitated removal of rear muffler box to remove by welding torch flame sensors seized into threads, due to no anti seize compound applied at time of manufacture/assembly. 

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2008 smart fortwo 2dr Convertible

70-horsepower 1.0L I3 5-speed automated manual RWD

132000 mi

US $169
Replaced exhaust Universal Flex pipe 
23000 mi

US $300
One of the individual accelerator position sensors was occasionally delivering a bad signal for at least long enough to throw a CEL and send it into limp-home mode. I replaced the accelerator myself. 
24000 mi

US $100
secondary air injection valve stuck. Part replaced. 
1400 mi Check engine light...air sensor module failed 
2000 mi OBD II code PO401. Faulty secondary air intake sensor. 
2000 mi Car towed to Riverside Smart dealer 06/28/08, returned 07/21/08, after replacing gas gauge float. Part delivery took over two weeks. 
35000 mi

US $150
Check Engine Light on. Engine fine---light bad. 
39300 mi

US $160
Sensor replace to correct engine light from coming on and staying on 
48000 mi

US $379
check engine light fault code P0497 secondary air injection flow too low 
59000 mi

US $585
Also fuel cap gasket had a hole and engine sensor light was on and reset. 
100000 mi

US $234
check engine light on. code = P049. sticky purge valve. replaced purge valve. 
101000 mi

US $139
check engine light came on. code=p0445-p0457. inspection of gas cap indicated gasket distorted. replaced gas cap. 
3000 mi Engine rattle at low speeds. 
4000 mi Small oil leak.  
46000 mi

US $2600
replaced main computer and throttle body! replaced throtle body 
16700 mi Lower motor mount bolt became loose, caused a ckunking noise when car shifted gears. Tightened bolt. 
56000 mi

US $60
Emissions secondary air pump noisy (Suspect bearing going bad) 
10000 mi Updated transmission to 09 computer flash, lubed gear shift knob. 
9000 mi Had a "Maintenance Due" icon showup on the dash. Stopped into the dealership and the service manager did a quick reflash and removed the icon. No other issues before or since. 
30000 mi

US $485
OE exhaust broke at the 'flex joint' - unable to replair. Replaced with an aftermarket unit (an upgrade). 
65700 mi

US $260
Flex tube between exhaust manifold and muffler broke. Had new piece welded in place of failed part. 
60000 mi

US $15
Sometimes could not switch gear into D or R. Dealership said they had about ten cars more this year with the same behavior. Updating the firmware should fix the problem which after driving a few thousand miles seems it did. 
137000 mi Engine runs on two out of three cylinders. I keep it for now because I can still drive it around town as long as the engine stays relatively cool. 

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2008 smart fortwo 2-door

3-cylinder automated manual 2WD

1000 mi Engine stopped in middle of block while car running. No warning lights, was able to restart, dealer found nothing and was not willing to investigate further. 

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See TrueDelta's information for all Hatchbacks and Convertibles.
See TrueDelta's information for all smart models.

2008 smart fortwo 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 2008 smart fortwo problems occur, check out our car reliability stats.