2007 Lexus RX (XU30)
Browse our directory of 2007 Lexus RX (XU30) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2007 Lexus RX (XU30) has 3 known issues. 2 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
Hybrid Inverter Intelligent Power Module (IPM) Solder Fatigue
SeriousOn RX 400h models, the solder joints on the transistors within the Intelligent Power Module (IPM) of the hybrid inverter can fail under thermal cycling. This triggers the Check Hybrid System warning, illuminates master warning lamps, and forces the vehicle into limp-home mode or causes an immediate loss of motive power. While covered by major UK safety recalls (DVSA recalls R/2011/076 and R/2013/088), unserviced or second-hand replacement inverters can still fail if the inverter cooling system is degraded.
Symptoms: Check Hybrid System message displayed on the multi-information display, Amber master triangle warning light illuminated on the instrument cluster...
Est. repair cost: £800–£2,500
Air Suspension Strut Leakage on SE-L Models
SeriousSE-L models fitted with height-adjustable air suspension can develop leaking air struts as the rubber bladders perish. The car drops onto its bump stops overnight, forcing the compressor to run continuously and eventually burn out. Leaving the car parked and checking that no corner drops is the standard buyer check.
Symptoms: One corner sitting visibly low after parking overnight, Air compressor running for prolonged periods...
Est. repair cost: £800–£1,500 per strut
Radiator End-Tank Seam Splitting and Coolant Loss
ModerateThe original Denso radiators fitted to the XU30 series suffer from age-related embrittlement of the plastic side/bottom end tanks and crimped aluminium core seams. In the UK climate, repeated thermal cycling and road salt spray accelerate corrosion along the bottom core channel, leading to slow weeping of Toyota Super Long Life pink coolant. If left unnoticed, the gradual loss of coolant can cause severe engine overheating and cylinder head gasket failure on the 3.0, 3.3, and 3.5-litre V6 engines.
Symptoms: Sweet coolant smell noticeable from the front grille after driving, Gradual drop in engine coolant expansion tank level over several hundred miles...
Est. repair cost: £350–£700
Buying Tips for the 2007 Lexus RX (XU30)
- On RX 400h hybrids, verify whether the hybrid inverter intelligent power module (IPM) recall was completed by checking dealer records or running the VIN through Lexus UK.
- Inspect the bottom corners of the engine radiator for pink crystalline crusting; the factory Denso radiators frequently develop hairline splits along the plastic tank seams.
- For SE-L models fitted with height-adjustable air suspension, leave the vehicle parked overnight and verify that none of the four corners drop onto their bump stops.
- Check rear brake discs through the alloy spokes for heavy rust ridges and uneven pad contact; regenerative braking means mechanical brakes are easily neglected in wet UK winters.
- On RX 300 and RX 400h models, ensure the timing belt and water pump have been replaced within the last 7 years or 100,000 miles, as the MZ-series V6 is an interference engine.
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