Which parts fail
Components named in complaints (doors, hood, frame, rust, paint and trim).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 1998 Kia Sephia owners, lightly cleaned up (personal details are redacted by NHTSA).
Tail light had to be replaced because of leaking, this is 4th time for brakes squeaking and pulsating, cow panel baffle needed replaced because of water pouring in behind glove box.people I don't know pull me over and complain about their Kia sephias and similar problems with them. Also the engine sometimes won't start the first time. It takes two or three times once in a while. It also sounds like the engine will jump right out of the car because it jerks so hard when starting. The gas tank has yet to let me fill it all the way. It gets almost full, then spits the gas out and won't let you "squeeze " it full. It's like there is no venting going on. I have heard similiar reports from other owners.
Signal lights fail to work properly when in use during cold weather for 15 minutes or so. Sometimes this happens when it's raining. The dealer replaced the hazard switch and there have not been any failures since. Seat belts have been replaced 3 times. Brakes and rotors have been replaced 3 times. Windshield wipers failed prior to recall. Head gasket replaced at 3500 miles. Molding on the doors fell off and was replaced. Tailpipe was replaced due to excessive exhaust fumes.
Failure of front brakes 3 times, dash board wire harness failure causing dash board displays, starter wire harness failed and needed to be replaced, paint rubbing off and blistering, lowed noises/vibration under driver side when driving in wet condittions,, poor gas milage, faulty gas guage, broken right rear speaker, back right door weather gasket falling off for the third time, slopp steering responce during quick turns
Can feel brakes pulsating when attempting stop vehicle. This causes the vehicle to pull to the right. Would make grinding noises when this happens. The steering wheel would shake. Inside the vehicle, the structure would leak. Been to dealer & had entire brake system replaced.
Engine stalls, especially when starting up vehicle in the mornings. Gas gauge does not read full, and passenger's side door is broken. This will be the third repair. Replaced door panel. Door hinges were broken.
Vehicle taken to dealer 4-5 times for driver's door repairs. Door will not stay shut. While driving door will fly open. Other times consumer is not able to open door at all. Dealer has replaced seal + lubricated seal.
Premature wear of brake pads and rotors. Dealer has repaired and replaced the brakes several times. In addition heater core, alternator, starter,spark plugs, front windshield and door weather strips failed.
While driving approximately 65 MPH, hood released and smashed into windshield which blocked vision of driver, consumer felt problem was due to brake pads and rotors that cause severe vibration and had to be replaced frequently, there was no crash or injury to report when this incident occurred. Brakes would vibrate and were noisy, requested rear brakes be cleaned lubed, dealer found rotors warped and pads worn and excessive dust in rear brakes, numerous engine problems such as cooling fan rumble, check engine light on, engine stall, burning smell, belt squeaks, electric cooling fan inoperative, fan blade, plug wires and coil boots, valve cover gasket were replaced, evaporator was replaced and recharged, many electrical problems including ignition switch, starter, alternator, multifunction switch, battery terminal, and bulb failure, dealer has also found corrosion, poor connections and …
Dashboard is beginning to lift and bubbles are forming near the vents for the defrostr. Consumer believes dashboard May obstruct vision. Cause is unknown.
Brakes,lights,seats,battery,airbags,odometer,leaks,aircondition,leftdoorhandle (tiresize: 14`)( dot number: tire size: 14` )
Body complaints in other Sephia years
Frequently asked questions
How common are body problems on the 1998 Kia Sephia?
NHTSA has 26 complaints about the body & structure of the 1998 Kia Sephia, 5% of the model year's 491 complaints. The component named most often is body › door (14 mentions).
Is there a recall for 1998 Kia Sephia body problems?
No. NHTSA lists no body & structure recall for the 1998 Kia Sephia, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 1998 Kia Sephia body problems start?
Half of the complaints with a recorded mileage happened before about 80,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 2 injuries to body & structure problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.