Cars with the most climate control problems

Ranking of the cars we have analysed by the severity and frequency of their documented climate control faults. Each fault links to its page: symptoms, cost, how to check it and sources.

Of the 317 cars we have analysed, 43 have documented climate control faults. The one with the most accumulated risk is the Kia Sportage IV, because of “faulty connector in the electric auxiliary heater with fire risk”; it is followed by the Citroën Berlingo III and the Opel Zafira B. For 274 we have found no documented climate control faults.

Reviewed on 9 October 2026How we work

Rank 1
Kia Sportage IV
Compact SUV · 1 climate control fault
7.1 out of 10climate control score
- Critical severityVery frequentFrequency: Very frequentClimate controlFaulty connector in the electric auxiliary heater with fire riskYes: in August 2022 the KBA recorded a campaign over a faulty connector in the electric auxiliary heater of some Sportage QL cars, with a fire risk.
Rank 2
Citroën Berlingo III
Van and combi · 1 climate control fault
7.1 out of 10climate control score
- Critical severityCommonFrequency: CommonClimate controlAir conditioning compressor stator wiring faultTwo successive recalls, in 2023 and 2024, cover Berlingo IIIs built between 2021 and 2024 in which the air conditioning compressor stator wiring can fail and even switch the engine off while driving; a reliability survey also documents a genuine compressor failure at 30,200 km.Appears at around 30,200 km
Rank 3
Opel Zafira B
MPV · 1 climate control fault
7.1 out of 10climate control score
- Critical severityCommonFrequency: CommonClimate controlFire risk from the heater fan resistorYes: Opel/Vauxhall recalled Zafira B cars built between 10 February 2005 and 24 October 2014 because the heater fan resistor can overheat and cause a fire. A first recall at the end of 2015 did not stop the fires and Opel extended the recall in August 2016.
Rank 4
Peugeot Rifter
Van and combi · 1 climate control fault
7.1 out of 10climate control score
- Critical severityCommonFrequency: CommonClimate controlAir conditioning compressor stator wiring faultTwo successive recalls, in 2023 and 2024, cover Rifters built between 2021 and 2024 in which the air conditioning compressor stator wiring can develop a current fault and even switch the engine off while driving; owner reports also document genuine compressor failures.
Rank 5
Kia Sorento III
Mid-size SUV · 1 climate control fault
7.1 out of 10climate control score
- Critical severityOccasionalFrequency: OccasionalClimate controlOverheating of the climate control's auxiliary electric heater (PTC) connector on diesel SorentosYes: Kia recalled diesel Sorentos built between May 2014 and February 2020 (campaign 221026) because the connector of the auxiliary electric heater (PTC) can become damaged and overheat, with a risk of fire. The connector is inspected and, if damaged, the heater is replaced along with its wiring.
Rank 6
Seat Altea
MPV · 1 climate control fault
7.1 out of 10climate control score
- Critical severityOccasionalFrequency: OccasionalClimate controlA poorly secured earth cable in the optional parking heater could cause a fireThe KBA documented that, on Altea cars with a factory-fitted parking heater built between 1 November 2006 and 21 December 2007, a poorly secured earth cable could cause heat damage and even a vehicle fire.
Rank 7
Volkswagen Jetta V
Compact · 1 climate control fault
7.1 out of 10climate control score
- Critical severityOccasionalFrequency: OccasionalClimate controlPoor earth connection of the auxiliary cabin heater on diesel JettasThe British register lists campaign 87B4 (R/2008/009): on diesel Jettas and Golf Estates built between January 2007 and January 2008, the contact resistance of the earth connection of the auxiliary air heater may exceed specification and cause localised overheating, with a risk of burns or fire.
Rank 8
BMW Serie 3 E90
Saloon · 1 climate control fault
7.9 out of 10climate control score
- High severityOccasionalFrequency: OccasionalClimate controlCampaign over fire risk from the heater fan connectorYes: in January 2021 BMW recalled around 430,000 3 Series E90/E91/E92/E93 cars in Germany (more than half a million worldwide) because the wiring connector of the heater fan regulator can corrode, cause a short circuit and set the vehicle on fire, even when parked. An earlier campaign, in autumn 2017, had already covered a first batch of cars in the United States.Repair: €0
Rank 9
Citroën C4 Picasso II
MPV · 1 climate control fault
7.9 out of 10climate control score
- Medium severityCommonFrequency: CommonClimate controlAir conditioning leaks and failuresThe C4 Picasso II's air conditioning fairly often develops gas leaks and condenser failures, according to the specialist press, which lists it among the model's persistent problems.
Rank 10
Fiat Grande Panda
City car · 1 climate control fault
7.9 out of 10climate control score
- High severityOccasionalFrequency: OccasionalClimate controlFoam in the windscreen demister nozzle limiting visibility (2026 recall F61L)Yes: recall F61L (KBA 16683R, June 2026) affects 21,691 Grande Pandas built between 28 May 2024 and 1 September 2025. Filler foam in the windscreen ventilation nozzle can block the demister and leave poor visibility; at the workshop the function is checked and the foam is removed if necessary.
Rank 11
Mazda CX-3
Small SUV · 1 climate control fault
7.9 out of 10climate control score
- Medium severityCommonFrequency: CommonClimate controlThe air conditioning loses refrigerant and stops cooling relatively oftenIt is one of the most repeated non-engine faults among CX-3 owners: the air conditioning gradually loses its cooling because of a gas leak in the condenser, in some cases with less than a year or only a few thousand kilometres of use.Appears at around 17,000 km
Rank 12
Mercedes-Benz Sprinter 907
Van and combi · 1 climate control fault
7.9 out of 10climate control score
- High severityOccasionalFrequency: OccasionalClimate controlOverheating of the heater and air conditioning fan fuseCampaign KBA 012571 (Safety Gate A12/00865/23) warns that the design of the cabin fan fuse can overheat when the fan is run continuously at maximum, with a risk of fire. It affects Sprinters built between March 2017 and November 2020.
Rank 13
Citroën C3 II
Small family car · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlPremature air conditioning compressor failureThe air conditioning compressor motor on the C3 II can fail from around 45,000 km, with cases of total failure at around 100,000 km; fiches-auto.fr puts the repair cost at around €1,000 in France.Repair (garage): €900–€1,100Appears at around 45,000 km
Rank 14
Citroën Jumpy III
Van and combi · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlFaulty air conditioning compressor that can cut the drivetrain of the ë-JumpyYes, on the electric version: Citroën included the ë-Jumpy and ë-Spacetourer in a 2023 recall for a faulty air conditioning compressor that can cause the drivetrain to disconnect. The fix is to load modified software into the control unit.
Rank 15
Dacia Sandero II
Small family car · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlAir-conditioning compressor failureThe Sandero II's air-conditioning compressor can fail and spread metal debris throughout the circuit, which means cleaning it or replacing several components as well as the compressor itself.
Rank 16
Honda Civic X
Compact · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlRefrigerant leak from the air conditioning condenserA source that collects owner testimonials ranks the air conditioning condenser among the least durable parts of the Civic X: it cracks or loses its seal over time and lets the refrigerant gas escape, so the air stops cooling.
Rank 17
Lexus UX
Compact SUV · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlUX 300e electric compressor and heating fault: no heating or demistingIn September 2025 Safety Gate listed a recall of the 2021-2022 Lexus UX 300e: the electric compressor can fail and put the climate control into a safety mode that suspends the heating and reduces demisting, with a risk of the windscreen misting up or freezing in cold weather.
Rank 18
Nissan X-Trail III
Mid-size SUV · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlRefrigerant leaks and worn air conditioning compressorYes: several sources describe refrigerant leaks, worn air conditioning compressors and a badly positioned sensor in the X-Trail's climate control system; a study by OCU also places Nissan among the brands with the most air conditioning faults in its European sample.
Rank 19
Peugeot 3008 III
Compact SUV · 1 climate control fault
8.6 out of 10climate control score
- Critical severityRareFrequency: RareClimate control48V auxiliary heater connector at risk of overheating and fireStellantis recalled Peugeot 3008 III units built between 26 June and 20 August 2025: the connection of the 48V battery wiring harness terminal for the auxiliary heater may not be properly seated, which can cause an electric arc, overheating and a risk of fire.
Rank 20
Renault Zoe
Small family car · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlHeat pump and air conditioning leaks and failuresSeveral Zoe owners document refrigerant leaks and heat pump failures: the air comes out cold or the heating works erratically, a problem described as especially annoying in winter on the Zoe II.
Rank 21
Toyota ProAce II
Van and combi · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlAir conditioning compressor: loose bracket and pulley that can breakToyota recalled 2016-2017 Proace vehicles because the bracket securing the air conditioning compressor to the engine might be badly tightened and break, letting the compressor come loose, and in 2019 over a compressor pulley that could break and damage other parts.
Rank 22
Volkswagen Golf VII
Compact · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlNoise or failure of the air conditioning compressor and the heatingSome Golf VII models show a high-pitched air conditioning compressor noise when it switches on, dampness in the front passenger footwell, or a heater that does not warm up because of a broken thermostat, blocked hoses or air in the circuit. No manufacturer has acknowledged a pattern with an official campaign.
Rank 23
Volkswagen Passat B6
Saloon · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlFaults with the compressor and flap motors of the air conditioningYes: fiches-auto.fr documents 8 cases of air conditioning compressor failure at a cited cost of around €1,000, and gebrauchtwagenberater.de attributes other air conditioning faults to a defective flap motor (servo motor).Repair (garage): €1,000
Rank 24
Volvo S40 I
Compact · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlHeater fan and demisting failure caused by the climate control diode on the 2001 Volvo S40A diode in the climate control system of S40 and V40 models built in 2001 lacked sufficient durability, and its failure could stop the fan and leave demisting and defrosting inoperative. The British campaign R/2001/074 adds a wiring harness with a diode for the fan.
Rank 25
Volvo V40 I
Compact · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlClimate control diode failure that leaves the demisting fan inoperativeVolvo recalled the 2001 V40 and S40 because a diode in the climate control system might not be durable enough and could leave the fan inoperative, so windscreen demisting and defrosting would fail. It was corrected with an additional harness with a diode (DVSA R/2001/074).
Rank 26
Volvo XC90 II
Mid-size SUV · 1 climate control fault
8.6 out of 10climate control score
- Medium severityOccasionalFrequency: OccasionalClimate controlWater getting into the cabin through a faulty air-conditioning drain hoseIn 2016 cars, a faulty air-conditioning drain hose can let water into the cabin and soak the carpet in the front and rear footwells. Volvo fixed it through a recall that reached around 11,000 cars in Germany.Repair: €0
Rank 27
Citroën Xsara Picasso
MPV · 1 climate control fault
8.9 out of 10climate control score
- Low severityCommonFrequency: CommonClimate controlPuncturing of the air conditioning condenser radiator by stone chipsThe Xsara Picasso's air conditioning condenser radiator, mounted in a low, exposed position at the front, is punctured fairly easily by stones and gravel thrown up from the road, with gas leaks documented even on cars with low mileage.Repair (garage): €170–€300
Rank 28
Renault Laguna III
Saloon · 1 climate control fault
8.9 out of 10climate control score
- Low severityCommonFrequency: CommonClimate controlAir conditioning compressor failureThe air conditioning compressor is, according to fiches-auto.fr, the most-cited fault on the Laguna III after general noises from the car, with failures documented between 24,000 and 200,000 km.Appears at around 24,000 km
Rank 29
Volkswagen ID.4
Compact SUV · 1 climate control fault
8.9 out of 10climate control score
- Low severityCommonFrequency: CommonClimate controlThe optional heat pump does not deliver the promised range savingIn part: in June 2021 Volkswagen acknowledged that the optional heat pump on the ID.3 and ID.4 did not deliver the cold-weather range saving it had promised in its advertising, lowered the price of the option and financially compensated customers who had already paid for it, as well as releasing a software update to improve its performance.
Rank 30
Ford Fiesta V
Small family car · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlAir-conditioning faults: compressor, fan resistor and flapsThe Fiesta V's air conditioning gives trouble fairly often: the compressor, the fan resistor or the air distribution flaps can fail, leaving an air-con that cools poorly or a fan that knocks when it starts.
Rank 31
Ford Mondeo IV
Saloon · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlWater leaking in through the air conditioning drainOn older Mondeo IV cars, the air conditioning condensate drain can become blocked and make water flow back into the cabin instead of draining outside, soaking the upholstery; fiches-auto.fr and gebrauchtwagenberater.de document this independently.
Rank 32
Mazda 3 IV
Compact · 1 climate control fault
9.3 out of 10climate control score
- Medium severityRareFrequency: RareClimate controlThe air conditioning can lose refrigerant and stop coolingA small number of owners describe a progressive loss of cooling in the air conditioning due to a refrigerant leak, with the condenser identified as the source; it is not a problem acknowledged by the manufacturer nor covered by any campaign.
Rank 33
Mercedes-Benz Clase B W246
MPV · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlAir conditioning refrigerant not compliant with regulations on a 2013 batchMercedes-Benz recalled B-Class cars built in 2013 to replace an air conditioning refrigerant that did not comply with the regulations in force.
Rank 34
Nissan Leaf I
Compact · 1 climate control fault
9.3 out of 10climate control score
- Medium severityRareFrequency: RareClimate controlHeating (heat pump) stops warming the cabinOn versions fitted with a heat pump, some owners report that the system stops producing warm air even though the ventilation keeps working normally.
Rank 35
Nissan Micra III
Small family car · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlAir conditioning loses effectivenessThe Micra III's air conditioning can lose effectiveness over time through leaks in the pipes, the condenser or the compressor; a German used-car guide describes it as a recurring problem on this model.
Rank 36
Renault Clio V
Small family car · 1 climate control fault
9.3 out of 10climate control score
- Medium severityRareFrequency: RareClimate controlPremature air conditioning compressor failureSeveral Clio V owners describe the air conditioning ceasing to cool at very low mileage, in some cases with the compressor completely out of service at 19,000 km or after just two months; there are no official campaigns or specialist press to confirm it.
Rank 37
Renault Mégane II
Compact · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlLeaks and failures of the air-conditioning compressorThe Megane II's air conditioning can lose effectiveness through leaks in the condenser, a fatigued compressor or a faulty pressure switch, as well as a blocked condensation drain.
Rank 38
Seat Arona
Small SUV · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlThe air conditioning compressor can fail and stop coolingA specialist automotive mechanics publication documents faults in the air conditioning compressor (Sanden SD7V16 model) in certain Arona batches: the air stops cooling and the compressor makes a noise when it engages. We have not found an official manufacturer campaign for this fault.Repair (garage): €600–€1,000
Rank 39
Škoda Octavia II
Compact · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlClimate control system faultsClimate control accounts for 9 of the 248 Octavia II owner responses in the fiches-auto.fr reliability survey, although the source does not detail which component fails in each case.
Rank 40
Volkswagen Golf VI
Compact · 1 climate control fault
9.3 out of 10climate control score
- Low severityOccasionalFrequency: OccasionalClimate controlAir conditioning system faultsAir conditioning is the second non-engine category with the most complaints from Golf VI owners in a reliability survey (24 of 666 responses), although the source does not detail which component fails in each case.
Rank 41
Ford S-Max II
MPV · 1 climate control fault
9.6 out of 10climate control score
- Low severityRareFrequency: RareClimate control2018 recall for faulty air conditioning compressors and uneven temperature distributionIn November 2018 Ford recalled S-Max vehicles with faulty air conditioning compressors that could stop cooling; fiches-auto.fr adds a case of automatic climate control sending air at inconsistent temperatures from the different vents.
Rank 42
MG MG4
Compact · 1 climate control fault
9.6 out of 10climate control score
- Low severityRareFrequency: RareClimate controlIneffective climate control or heat pumpThere is the odd documented case of ineffective or inoperative climate control in the MG4, with no cooling or heating, according to a French compilation of testimonies; the source does not distinguish whether it affects versions with conventional air conditioning or with a heat pump more.
Rank 43
Seat Ibiza III
Small family car · 1 climate control fault
9.6 out of 10climate control score
- Low severityRareFrequency: RareClimate controlThe climate control mixing flap motor can fail and throw the temperature offA German reliability report points to the climate control's air mixing flap motor as a weak point of the Ibiza III: when it fails, the air stops coming out at the selected temperature or from the selected vent.

No documented climate control faults

We have found no reliable sources reporting climate control faults on these cars. That does not mean they never fail: maintenance and use count as much as design.