Common Problems & Fixes

60 pages

Cabin water leaks — causes and fixes — Cabin water leaks are one of the most commonly reported X80 problems, with several distinct entry points documented by the community. (55 sources)
AKPP jerking, surging, and idle hunting — Transmission model and general jerking/surging fix. The X80's automatic transmission is an Aisin 09G. Jerking on a cold morning start is considered normal. For… (38 sources)
Engine mounts — vibration and shift jerk — Engine vibration diagnosis — most common cause is the left front mount. In used X80s (especially the 2018 model at higher mileage), the most common cause of engine… (30 sources)
PDC sensor issues after bumper removal — Errors after rear bumper removal. Multiple users reported parking-sensor errors appearing after the rear bumper was removed for unrelated maintenance work. Common… (29 sources)
Service fraud — unneeded overhaul then VVT damage — A user brought their X80 in for a routine valve adjustment service. The shop instead charged 120,000 RUB (RU market, September 2025) for a full cylinder-head overhaul,… (29 sources)
Whining noise after grounding out the belly pan — After the car scrapes its belly/grounds out (e.g., on a curb or a rough obstacle), some owners hear a whine during acceleration that drops on throttle release and… (24 sources)
Drive shaft vibration and CV joint repair — Right drive shaft: play and steering-wheel vibration. On an automatic car (AKPP / АКПП) the right drive shaft (привод) had play in the splines (шлицы) and slight play in… (22 sources)
Fuel gauge and sender malfunctions — Fuel gauge showing empty or half when the tank is full. Symptom: the fuel gauge displays an incorrect level (e.g., half-tank when the tank is actually full). Causes:… (22 sources)
Catalytic converter failure — P0420/P0430 codes — Check-engine light from catalyst-efficiency codes at low mileage. Multiple owners report the check-engine light coming on with P0420/P0430 (catalytic converter… (21 sources)
ESP light and the "drunk road" error code — Clearing the "drunk road" (пьяная дорога) ESP error code. This error, triggered by wheel slip or sharp turns on low-friction surfaces, requires professional service with… (19 sources)
Cold-start hard cranking — LPG and valve clearance — Symptom: on a car with ~200,000 km on the original engine and an LPG/gas conversion installed, the engine does not always start on the first attempt in sub-zero weather,… (17 sources)
Key fob stuck button and battery freeze — Stuck button causes random alarm triggers. Multiple owners reported the remote key fob intermittently triggering the car alarm when unlocking the doors. Root cause: the… (17 sources)
Serpentine belt wear noise and emergency repair — Wear noise at 128,000 km. At 128,000 km, one owner's serpentine belt showed wear symptoms: early-morning squeaking/crackling before the engine warms up. Note: visible… (16 sources)
Folding side mirror gear slippage in cold weather — In freezing conditions, folding side mirrors can disconnect from the drive mechanism if ice/frost buildup increases friction: when the motor tries to close the mirror,… (14 sources)
Common wear items and failure points by mileage — A community-sourced reference of typical wear items by odometer mileage: - ~50,000 km: front suspension links/bushings, brake pads. - 70,000–80,000 km: front hub… (13 sources)
Electrical fault — burning smell and no-start — Symptoms reported together: a burning wire smell, the car refusing to start, and dashboard lights staying active without a key in the ignition — as if the whole dash is… (12 sources)
Restyled generation — design flaws beyond leaks — The restyled ("дore"/restyle) X80 generation has several known design issues beyond the water-leak topics covered in the dedicated cabin-water-leaks card: (1) plastic… (12 sources)
Transmission oil cooler failure — coolant/ATF mix — The automatic-transmission oil cooler (маслоохладитель) can fail internally and leak transmission fluid into the radiator, with engine coolant back-flowing into the… (11 sources)
Front suspension knocking and squeaking noise — Knocking noise from the front suspension over 50k km. Symptom: an audible knocking sound from the front suspension area while driving, reported at 50k–80k km mileage. A… (11 sources)
Engine jerking at highway speed — EGR failure — Symptom: the engine jerks or hesitates when coasting at highway speed (~100 km/h) and easing off the throttle in a high gear (4th or 5th). Diagnosis: an OBD scanner must… (10 sources)
Transmission lag on incline acceleration — Symptom: when accelerating from near-stop on an uphill grade (e.g., exiting a dirt road onto an uphill highway), the transmission hesitates — engine RPMs climb but power… (10 sources)
Restyle vs. pre-restyle part mismatches in repairs — A post-accident repair was delayed by over 1.5 months because the shop ordered a pre-restyle ("дорест") rear door (5-door cargo area) for a vehicle that was actually the… (9 sources)
Fuel door latch frozen shut in cold weather — The fuel door latch can freeze shut after a car wash in winter, especially if water enters the mechanism. Symptom: the ratcheting release handle does not open the latch.… (9 sources)
Oil pan/plug wetness — leak source diagnosis — Wetness around the oil cartridge/filter area suggests a possible oil leak. Diagnosis method: wash all surfaces with brake cleaner, then re-inspect after another ~5,000… (9 sources)
Suspension and drivetrain noises in extreme cold — At extreme cold (−39°C to −41°C observed), X80 owners report: stabilizer bushings (втулки стаба) may crack or become brittle-sounding; shock absorber struts crackle and… (9 sources)
Clutch pedal bracket fracture (B50 design flaw) — On manual-transmission FAW Besturn X80s, the side mounting bracket ("лапка") of the clutch pedal frequently fractures. This is described as a common issue, not an… (8 sources)
Electronic parking brake — dead battery trap — On manual-transmission (МТ) cars with the electronic parking brake (электроручник), if the battery dies completely while parked, you cannot push-start the vehicle — the… (8 sources)
Parking brake light stuck after pad replacement — Replacing brake pads with the ignition ON, then turning the ignition OFF while the electronic parking brake solenoids are still powered, can leave the parking brake… (8 sources)
Air filter compatibility — wrong part numbers — Some air filters listed for sale as fitting the X80 are actually made for other FAW models (B50, B70). Parts even marked with what looks like the correct X80 article… (7 sources)
Cold-start whistling from the transmission side — Whistling or chirping noise from the driver-side transmission area on cold start, which disappears once the vehicle warms up. Multiple diagnostic possibilities were… (7 sources)
Off-road wiring damage and full-system fault diagnosis — Off-road use (muddy fields, rough terrain) can expose the wiring harness and break connections. After any off-road driving, check for broken or pinched wires in the… (7 sources)
Brake pad and disc replacement dependency — When brake pads are severely worn down (worn completely through), the brake discs underneath are also typically damaged or worn beyond spec. Replacing only the pads… (6 sources)
Warning: online marketplace scam sellers for X80 parts — Caution against purchasing car parts from unknown sellers on online marketplaces claiming to have FAW X80 parts. Documented case: a seller from the Tyumen region claimed… (6 sources)
Rear suspension bolts seized by corrosion — While replacing a left rear bushing (сайлентблок) on a 2017 X80, an owner could not remove the mounting bolt — it would not budge despite both heating and soaking with… (6 sources)
Windshield spontaneous cracking and water leak — An owner reported fighting a driver-side water leak for six months; after sealing the sunroof drain, the leak reduced on the right side but water remained under the… (6 sources)
AKPP knocking sound when shifting from Park to Reverse — When switching from P to R, the transmission makes a knocking/impact sound. At 80,000 km, a partial then full oil change plus transmission filter replacement improved… (5 sources)
CV joint (ШРУС) damage diagnosis — Symptom: clicking, crunching, or crackling noise during acceleration (1st–2nd gear, heavy throttle) under load, which disappears when coasting or in neutral once load is… (5 sources)
Engine jerking on light throttle in traffic — One owner reported the engine jerking specifically when lightly accelerating ("подгазовках") while already moving in traffic — not when pulling away from a standstill,… (5 sources)
Power steering pump failure — warranty denials — Warranty denied. An owner who bought a 2021 X80 from an official dealer had a power-steering (GUR) pump failure diagnosed at a scheduled service in 2024 (~3 years of… (5 sources)
Tire size 235/65 R17 does not fit the X80 — 235/65 R17 tires are too large for the FAW Besturn X80 body and suspension — they physically mount, but the steering will bind/hit the wheel arch when turning, confirmed… (5 sources)
VIN plate corrosion on pre-facelift models — Some pre-facelift ("дорест") FAW X80 models experience rust/corrosion on the VIN (chassis number) identification plate, making it unreadable. The issue appears specific… (5 sources)
Engine bay pressure washing causes misfire — An owner had the engine bay pressure-washed (керхер/Kärcher-style) at the dealership car wash when buying the car. Water intruded into the cylinder-1 spark plug well,… (4 sources)
Factory speed limiter — ECU tuning to raise it — The factory ECU cuts fuel at 200 km/h in D-mode and at 215–218 km/h in Sport mode, despite the speedometer being marked up to 240 km/h. Solution to raise the limit: ECU… (4 sources)
Mechanical parking brake seized by corrosion — A community member reported what appeared to be the first documented case of a mechanical parking-brake seizure caused by rust and corrosion (2024-09-02). Symptom: the… (4 sources)
A/C compressor vibration and performance issues — The A/C compressor can vibrate significantly, with the vibration transmitting through the engine mount into the body/chassis — most noticeable during acceleration.… (3 sources)
Muffler/exhaust rattling noise troubleshooting — Rattling noise from the right side of the exhaust/muffler area has two documented checkpoints: (1) the thermal shield — check for loose mounting or contact with the… (3 sources)
Original hub bearing longevity varies widely — Factory hub bearing durability varies significantly between cars. Some original hubs fail as early as ~42,000–85,000 km; one owner reports the original hub still… (3 sources)
Spontaneous rear spring failure after heavy load — Two community members separately reported a rear coil spring breaking/cracking while the vehicle was parked and stationary after carrying a heavy load, with no prior… (3 sources)
Windshield fogging from floor water leaks — Symptom. The windshield fogs while driving and the fog returns soon after the A/C and fan have cleared it; one owner reports the same in wet weather. (3 sources)
Door lock and central locking issues — Two thin, low-confidence reports of separate lock-related issues: (2 sources)
Fuel smell in cabin after cold start (canister) — If a gasoline smell appears in the cabin after a cold start and disappears after roughly 50 km of driving, the charcoal canister (absorber/EVAP canister) may need… (2 sources)
Heater motor vibration caused by debris — Vibration from the heater motor (мотор печки) is commonly caused by debris or leaves getting into the intake. The motor can be removed for inspection by taking out 3… (2 sources)
Key light blinks after keyless bypass install — An improperly installed aftermarket keyless-entry bypass module (обходка) can cause the ECU to interpret the vehicle as compromised. Symptom: the key warning light… (2 sources)
Steering wheel button controls not responding correctly — Steering wheel remote control buttons (volume +/−) intermittently malfunction or don't respond to quick presses — a video from one owner shows the volume-down button… (2 sources)
Under-wheel-arch corrosion — treatment with mud flaps — Corrosion under the wheel arches — common in damp/salty climates such as St. Petersburg — can be slowed with universal mud flaps installed using self-tapping screws, at… (2 sources)
ABS sensor damage from a pothole — A driver hit a large pothole (described as a "drunken road") and the ABS warning light activated. Inspection revealed the wheel sensor's tooth (reluctor ring tooth) was… (1 sources)
Oil drain plug thread stripping — Changing engine oil very frequently (every 3,000–5,000 km or more often) can strip the drain-plug threads over time. One owner experienced the drain plug backing out… (1 sources)
Head gasket failure — milky oil/coolant emulsion — A milky emulsion in the cooling system is not always a head gasket problem — poor-quality/incompatible antifreeze can itself cause emulsion to form, which is a less… (1 sources)
Intermittent key-insertion recognition fault — Low-confidence, single-source report: the ignition key is sometimes not recognized when inserted (no starter activation), while at other times all systems work normally.… (1 sources)
Speedometer accuracy — factory offset vs. GPS speed — The factory speedometer on the X80 reads noticeably higher than actual GPS-measured speed. One owner's real top speed by GPS was no more than 180 km/h, while the… (1 sources)