SsangYong2002–2018 Critical issues documented

SsangYong Rexton Y400: common faults & what to check

The Y400 is the SsangYong Rexton built 2018 onward. It was sold here with the 2.0 turbo petrol and 2.2 diesel. Of the 13 faults documented for the Rexton, 6 apply to this generation, each with its symptoms, what to inspect and a typical repair cost. Free, no account needed.

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Documented faults

Critical

Most serious

$400–$2,800

Typical repair

Systems covered

You're looking at the Y400

2 engine variants are documented for this generation. Pick yours to narrow further, or keep reading for the generation as a whole.

2018–nowY400 Selected2018–nowY4002.0 turbo petrolPetrolDocumented issues3 knownSee faults & what to checkPhoto: RL GNZLZ via Wikimedia Commons, CC BY-SA 2.0.

2018–nowY400 Selected2018–nowY4002.2 dieselDieselDocumented issues6 knownSee faults & what to checkPhoto: RL GNZLZ via Wikimedia Commons, CC BY-SA 2.0.

Choose a different generation

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Which engine is in it?

2.0 turbo petrol· 2.0 litre petrol, turbocharged 2.2 diesel· 2.2 litre diesel

A 2019 SsangYong Rexton is the Y400 generation (2018 to now).

Start your free check on this SsangYong Rexton

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SsangYong Rexton Y400Engine not picked yet

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Can't confirm for this car

SsangYong Rexton · 2019

Narrowed to the year. No engine is recorded for this vehicle. Pick an engine to see which faults apply.

Tell us the engine, or check the engine code on the car, before relying on this.

No engine is recorded for this vehicle.

matched on year only

What to look out for

The checks worth doing on a SsangYong Rexton before you hand over any money. Every documented fault is listed below, each with its own page.

Costly issue
Watch the dash on start-up and during the drive for flicker or warning lights, especially ABS/ESP.
See why
Electrical faults: voltage fluctuation, infotainment and ABS/ESP sensors (Y400)
The Y400 Rexton suffers a range of electrical niggles: on-board voltage fluctuations that cause infotainment dropouts, dash flicker or spurious error codes, and ABS/ESP wheel-speed sensors that sit near the hubs and get moisture-affected, bringing the ABS/ESP warning lights on with no real underlying fault. Mostly nuisance-level but can be persistent and frustrating.
What you would notice
- Infotainment freezing or rebooting
- Dashboard flicker or false warnings
- ABS/ESP warning lights coming and going
- Random error messages
Typically $150–$1,200 to put right.
Common issue
On the drive listen for front-end clonks over bumps.
See why
Front upper-arm play and stabiliser-bar wear (Y400)
On the Y400 Rexton the double-wishbone front suspension tends to develop play in the upper arms after roughly 70,000-100,000 km, and the stabiliser (sway-bar) links/bushes wear quickly enough to be treated as consumables (owners report around 40,000 km service life). The result is clonks over bumps and vaguer steering. Parts are relatively cheap but affect ride, handling and WOF.
What you would notice
- Clonk or knock over bumps from the front
- Vague or loose steering
- Uneven front tyre wear
- Rattle from the front on rough roads
Typically $300–$1,500 to put right.

See all 6 issues for this oneDocumented for the exact year and engine you picked.

Electrical1

01Electrical faults: voltage fluctuation, infotainment and ABS/ESP sensors (Y400)

Watch the dash on start-up and during the drive for flicker or warning lights, especially ABS/ESP.2018 onwardElectrical$150–$1,200

CommonElectrical $150–$1,200 to fix

The Y400 Rexton suffers a range of electrical niggles: on-board voltage fluctuations that cause infotainment dropouts, dash flicker or spurious error codes, and ABS/ESP wheel-speed sensors that sit near the hubs and get moisture-affected, bringing the ABS/ESP warning lights on with no real underlying fault. Mostly nuisance-level but can be persistent and frustrating.

Symptoms to notice

Infotainment freezing or rebooting
Dashboard flicker or false warnings
ABS/ESP warning lights coming and going
Random error messages

What to check

Watch the dash on start-up and during the drive for flicker or warning lights, especially ABS/ESP.
Test the infotainment for freezes.
Ask whether the ABS/ESP lights have been an intermittent problem.
OBD-scan for wheel-speed-sensor codes.

Where to look: ABS/ESP wheel-speed sensors at each wheel hub, infotainment head unit, vehicle wiring/charging system

Ask the seller

“Do the ABS or ESP lights ever come on?”
“Any infotainment or electrical glitches?”
“Have any wheel-speed sensors been replaced?”

Body, brakes, suspension & interior1

02Front upper-arm play and stabiliser-bar wear (Y400)

On the drive listen for front-end clonks over bumps.2018 onwardSuspension$300–$1,500

CommonSuspension $300–$1,500 to fix

On the Y400 Rexton the double-wishbone front suspension tends to develop play in the upper arms after roughly 70,000-100,000 km, and the stabiliser (sway-bar) links/bushes wear quickly enough to be treated as consumables (owners report around 40,000 km service life). The result is clonks over bumps and vaguer steering. Parts are relatively cheap but affect ride, handling and WOF.

Symptoms to notice

Clonk or knock over bumps from the front
Vague or loose steering
Uneven front tyre wear
Rattle from the front on rough roads

What to check

On the drive listen for front-end clonks over bumps. Have someone rock the front suspension or check on a hoist for play in the upper arms and sway-bar links. Check front tyres for uneven wear. Budget for sway-bar links as a wear item.

Where to look: Front double-wishbone upper control arms and stabiliser-bar links/bushes

Parts involved: Ball joint.

Ask the seller

“Have the front control arms or sway-bar links been replaced?”
“Any knocking over bumps?”
“Will it pass a WOF now?”

Depends on the exact engine — 4 moreDocumented for a specific engine we could not confirm from what you picked. Check the engine code on the car.

Engine, transmission & cooling4

01DPF Clogging on Short Urban Trips

Scan the ECU for DPF soot load percentage and ash load percentage — above 80% soot requires immediate forced regeneration.diesel2018 onwardEngineCan't confirm for this car$350–$4,200Read the full fault: symptoms, where to look, what to ask the seller

022.2 D22DTF Timing Chain Tensioner Wear

Cold-start the fully cold engine and listen immediately for a metallic rattle from the front-upper engine area.diesel2018 onwardEngineCan't confirm for this car$1,800–$3,800

OccasionalEngine $1,800–$3,800 to fix

Can't confirm for this car

The hydraulic timing chain tensioner on the 2.2L e-XDi D22DTF diesel loses clamping force at high mileage, typically above 120,000 km. Worn tensioner and guide rails allow the chain to slap before oil pressure builds on cold start, producing a characteristic 2-5 second metallic rattle. Unchecked, a slack chain can skip a tooth causing catastrophic engine damage requiring full engine replacement.

Symptoms to notice

Metallic rattling from top of engine for 2-5 seconds on cold start
Noise subsides once oil pressure builds during warmup
Rattle worsens in cold ambient temperatures
P0016 or P0017 cam-crank correlation fault codes in advanced wear

What to check

Cold-start the fully cold engine and listen immediately for a metallic rattle from the front-upper engine area.
Rev to 1500 rpm and confirm noise disappears within 5 seconds.
Inspect engine oil level and condition.
Scan for P0016 and P0017 codes.
Review service history for oil change frequency.

Where to look: Front of engine, upper timing cover

Parts involved: Timing chain.

Ask the seller

“Has the timing chain or tensioner ever been replaced?”
“What is the current mileage and full service history?”
“Does the engine make any rattling noise on a cold start?”

03EGR Valve Carbon Buildup & P0401

Scan for P0401, P0402, P0403, P0404 EGR-related codes.diesel2018 onwardEngineCan't confirm for this car$280–$1,400Read the full fault: symptoms, where to look, what to ask the seller

04Mercedes-sourced automatic shift-quality complaints (Y400)

On a longer test drive assess the auto through town and open-road speeds — note any harsh shifts, hesitation or hunting.2018 onwardTransmissionCan't confirm for this car$400–$4,000

OccasionalTransmission $400–$4,000 to fix

Can't confirm for this car

The current Y400 Rexton's most commonly cited problem is its Mercedes-Benz-sourced automatic transmission, with owners reporting harsh or hesitant shifts and occasional drivability quirks. A fluid service and software update can help, but it's the standout complaint on an otherwise solid large 4x4, so assess shift behaviour carefully.

Symptoms to notice

Harsh or clunky gear changes
Hesitation or delayed engagement
Occasional flare or hunting between gears

What to check

On a longer test drive assess the auto through town and open-road speeds — note any harsh shifts, hesitation or hunting. Check for any transmission service or software-update history. Cold and hot behaviour can differ, so drive it both.

Where to look: Mercedes-derived automatic transmission

Ask the seller

“Has the transmission had any software updates or fluid service?”
“Does it shift smoothly hot and cold?”
“Any known gearbox faults?”

Other SsangYong Rexton engines and years7 documented issues that do not apply to the one you picked.

Engine, transmission & cooling5

01Automatic Transmission Solenoid Wear and Shift Quality Degradation

Test drive with full warm-up then assess shift quality through all gear ranges including kickdown.2002–2017TransmissionDoes not apply$800–$4,200

OccasionalTransmission $800–$4,200 to fix

Does not apply

The Rexton's automatic transmission — a Mercedes-derived 5-speed unit on early models and a Benz W5A330 on later variants — develops solenoid pack wear and valve body sludging at high mileage, causing erratic shifts, slipping between gears, and delayed engagement from rest. Transmission fluid is rarely changed on service schedules, accelerating wear. Solenoid replacement often resolves issues; rebuilt valve bodies are needed in advanced cases.

Symptoms to notice

Harsh or delayed gear changes
Slipping between 2nd and 3rd gear
Transmission warning light
Clunk when selecting Drive or Reverse from Park
Transmission overheating in stop-start traffic

What to check

Test drive with full warm-up then assess shift quality through all gear ranges including kickdown.
Scan for transmission fault codes.
Check transmission fluid colour — brown or burnt smell indicates neglected fluid.
Ask for transmission service history.

Where to look: Transmission unit, underside centre of vehicle

Parts involved: Mechatronic / valve body.

Ask the seller

“Has the transmission fluid ever been changed?”
“Are there any gear change hesitations or slips?”
“Has any transmission work been done?”

02Turbocharger wear on the 2.7 XDi diesel (Y200/Y250)

On the drive, load the engine and confirm it makes boost cleanly without an unusual whistle or a puff of smoke.diesel2003–2017EngineDoes not apply$1,500–$4,000

OccasionalEngine $1,500–$4,000 to fix

Does not apply

The older Rexton's 2.7 XDi turbo-diesel (a Mercedes-derived five-cylinder) is generally robust but the turbocharger can wear or fail with age and hard use, giving power loss, a whistling/whining noise and exhaust smoke. Oil starvation from tired seals or neglected servicing is a common cause. A replacement turbo is a significant bill on a budget-priced older 4x4.

Symptoms to notice

Whistle or whine that rises with revs
Loss of power / lag
Blue or black smoke
Oil in the intake pipework

What to check

On the drive, load the engine and confirm it makes boost cleanly without an unusual whistle or a puff of smoke.
Ask about oil-change history — neglect kills these turbos.
Check the intercooler piping for oil residue.

Where to look: Turbocharger on the exhaust side of the 2.7 diesel engine

Parts involved: Turbocharger.

Ask the seller

“Has the turbo ever been replaced?”
“How regularly has the oil been changed?”
“Any smoke or whistling under load?”

03Mercedes OM602/OM664 Diesel Glow Plug Seizure

Ask whether plugs have been replaced and at what mileage.diesel2002–2017EngineDoes not apply$400–$2,800Read the full fault: symptoms, where to look, what to ask the seller

04Cooling-system leaks risking overheating (Y200/Y250)

Check the coolant level and condition (clean, correct colour, not oily).2003–2017CoolingDoes not apply$500–$2,500

OccasionalCooling $500–$2,500 to fix

Does not apply

Cooling-system problems are a serious watch-item on the older Rexton — leaks develop around the radiator, hoses and water pump, and if the engine overheats it can cause severe damage including head-gasket failure. On a heavy 4x4 that may have towed, a tired cooling system is a real risk. Fresh coolant and a healthy pump are cheap insurance versus a cooked engine.

Symptoms to notice

Coolant loss / low reservoir
Temperature gauge climbing in traffic or towing
Sweet coolant smell
Weeping radiator, hoses or water pump
White exhaust or mayo in oil if head gasket has gone

What to check

Check the coolant level and condition (clean, correct colour, not oily).
Look at the radiator, hoses and water-pump area for weeping or crusty residue.
On the drive watch the temperature gauge, especially idling or climbing.
Check the oil cap for mayonnaise (head-gasket sign).

Where to look: Radiator, coolant hoses and water pump at the front of the engine

Parts involved: Head gasket, Water pump, Radiator.

Ask the seller

“Has it ever overheated or had cooling repairs?”
“When was the coolant last changed?”
“Has it towed regularly?”

05Glow plug failure and hard cold starting (2.7 diesel)

Start it from stone cold (ask the seller not to pre-warm it).diesel2003–2017EngineDoes not apply$300–$900

CommonEngine $300–$900 to fix

Does not apply

Glow-plug problems are common on the older 2.7 diesel Rexton; when one or more fail the engine becomes hard or impossible to start when cold, with extended cranking and white smoke until it catches. Cheap to fix if caught, but a symptom that's easy to dismiss as 'it's just cold' — and a failed glow plug can be awkward to extract if it's been left.

Symptoms to notice

Hard starting when cold
Long cranking / multiple attempts
White smoke on cold start
Rough running until warm

What to check

Start it from stone cold (ask the seller not to pre-warm it).
Note extended cranking or white smoke.
Turn the ignition to the 'wait-to-start' glow stage and confirm the light behaves normally.
Ask if the glow plugs have been replaced.

Where to look: Glow plugs in the cylinder head, one per cylinder

Parts involved: Glow plug.

Ask the seller

“Can I start it completely cold?”
“Have the glow plugs been replaced?”
“Does it struggle to start on cold mornings?”

Electrical1

01AWD Rear Coupling Actuator Sensor Failure

Scan all ECU modules including transfer case and AWD controller modules for fault codes.diesel2012–2017ElectricalDoes not apply$850–$2,600

OccasionalElectrical $850–$2,600 to fix

Does not apply

The electronically-controlled rear coupling unit on the Rexton W AWD system uses a position sensor on the electromagnetic actuator to confirm engagement status. The sensor and its wiring connector are exposed to road grime and moisture ingress and are prone to failure, causing the system to report an AWD fault and default the vehicle to rear-wheel drive only. A failed actuator can also prevent the rear coupling from engaging entirely, leaving the vehicle in permanent two-wheel drive and reducing off-road safety.

Symptoms to notice

4WD or AWD warning light illuminated on the instrument cluster
AWD system disengaged — vehicle defaults to rear-wheel drive only
Transfer case or AWD controller fault codes stored in ECU
Intermittent AWD engagement on loose or slippery surfaces
Grinding or clunking when AWD coupling attempts to engage

What to check

Scan all ECU modules including transfer case and AWD controller modules for fault codes.
Inspect the rear coupling actuator wiring connector and harness for corrosion, chafed insulation, or cracked plugs.
Measure actuator coil resistance against workshop manual specification.
Verify AWD engages during a low-speed test on a loose gravel surface.
Check actuator housing for evidence of water or mud ingress.

Where to look: Rear differential and coupling unit, underside of vehicle at rear axle

Ask the seller

“Has the 4WD or AWD warning light ever come on?”
“Does the AWD system engage and disengage correctly in all modes?”
“Has the rear coupling actuator or position sensor ever been replaced?”
“Has the vehicle been used off-road in mud, water, or creek crossings?”

Body, brakes, suspension & interior1

01Frame and Undercarriage Rust Perforation

Probe chassis box sections with screwdriver at welded seams and drain holes.2002–2017Body & RustDoes not apply$1,500–$7,000

OccasionalBody & Rust $1,500–$7,000 to fix

Does not apply

Older Rexton examples — particularly pre-2010 vehicles in NZ's coastal and high-rainfall regions — develop significant rust in the ladder-frame chassis rails, floor pan, and rear body mounts. The vehicle's frame shares construction heritage with the 1990s Mercedes G-Class era and is susceptible to box-section corrosion where drain holes block. Advanced cases fail NZ WoF inspections on structural corrosion grounds.

Symptoms to notice

Visible rust bubbling along chassis rails
Flaking underside rust during inspection
Water pooling in floor area (corroded floor pan drain)
WoF rejection for structural corrosion

What to check

Probe chassis box sections with screwdriver at welded seams and drain holes.
Check rear body mount pads and front crossmember.
Examine floor pan above exhaust for rust-through.
Look for fresh underseal concealing rust.
If a workshop inspection is possible: Inspect full underside on hoist.

Where to look: Ladder frame chassis rails, floor pan, body-to-chassis mounts, rear crossmember

Parts involved: Chassis and structural rust, Body corrosion.

Ask the seller

“Has the underside been rust-treated?”
“Does it hold a current WoF with no rust conditions?”
“Has any chassis welding or repair been done?”

SsangYong Rexton faults in detail

Narrowed to the SsangYong Rexton · 2019. Each of these has its own page: the symptoms, where to look, what to ask the seller and what the repair costs. Free, no account needed.

DPF Clogging on Short Urban TripsMajor · Engine EGR Valve Carbon Buildup & P0401Major · Engine

What these repairs cost on other cars

Some of the SsangYong Rexton’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

Other SsangYong models

SsangYong Musso10 documented faults SsangYong Korando9 documented faults SsangYong Tivoli7 documented faults SsangYong Rhino6 documented faults

SsangYong Rexton buyer questions

Is the SsangYong Rexton reliable?

Like any used car, it depends on the specific example and its service history. Across the 13 documented faults for the SsangYong Rexton, the recurring problem areas are body & rust, engine, and transmission. A SsangYong Rexton with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.

What are the most common problems with a used SsangYong Rexton?

We've catalogued 13 known faults for the SsangYong Rexton, covering body & rust, engine, and transmission. All 13 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.

How much do repairs cost on a SsangYong Rexton?

Most single repairs on the SsangYong Rexton fall between $400–$2,800 at NZ independent-workshop rates. Some of the 13 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.

Should I get a pre-purchase inspection on a SsangYong Rexton?

Yes. A SsangYong Rexton inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $24.90 far less than the cost of missing one of the faults on this page.