BMW's flagship PHEV sedan combining the proven B58 3.0-litre inline-six with a fifth-generation eDrive electric motor for 490 hp and around 80 km of electric range. Built on the same G70 platform as the all-electric i7, the 750e pairs genuine daily-commute EV capability with the refinement expected of a full-size luxury sedan. Standard air suspension, integral active steering, and iDrive 8 make it one of the most technologically dense production cars available. The B58 engine has a strong reputation, but the PHEV drivetrain, integrated brake system, and flagship electronics introduce complexity that is still maturing.· more· less
Proven B58 engine, strong reliabilityGenuine 80 km electric range
Buy if: You want flagship luxury with real electric range and can verify all recalls are completed, ideally buying within the 8-year HV battery warranty window.
Avoid if: You plan to buy one outside warranty without a significant repair fund, or you rarely plug in the car, which negates the PHEV benefit and accelerates HV battery wear.
Integrated brake module welds can fail, causing loss of power brake assist and ABS/DSC function · more· less
Two separate recalls (24V104000 and 24V697000) have been issued for the integrated brake system on 2023-2024 750e models. Welds in the servomotor may fail, resulting in reduced braking performance and disabled stability control. BMW replaces the entire integrated brake module under recall at no cost. This is currently covered, but if a replacement unit fails outside warranty, the integrated brake module is an expensive component. Verify with BMW using the VIN that both brake recalls have been completed before purchase.
Air suspension strut leak
€1,500 - 3,5002 of 8
Rubber air springs degrade over time, causing corner sag and compressor overwork · more· less
The G70's standard air suspension uses rubber bladders that develop cracks and leaks as they age. A leaking strut causes that corner to sag, and the compressor runs continuously to compensate, eventually burning itself out. On the G11 generation, air suspension issues typically appeared between 60,000 and 100,000 km. The G70 uses updated components, but the underlying technology is the same. A single OEM air strut costs approximately €1,200-1,800 including labor at a BMW dealer, with aftermarket options from around €800. Compressor replacement adds €800-1,500. If multiple struts fail in succession, total costs can reach €3,500 or more.
KLE charging module failure
€1,500 - 3,0003 of 8
Onboard charger stops working, preventing AC charging of the high-voltage battery · more· less
The KLE (Komfort-Lade-Elektronik) module is the onboard AC charger that converts mains power to charge the HV battery. It is a known weak point across BMW's PHEV range, from the 330e to the 745e. Symptoms include charging interruption errors, flashing red lights on the charge port, and eventually complete inability to charge via AC. The 750e uses Gen5 eDrive with an improved KLE, but early reports from other Gen5 BMW PHEVs suggest the issue is not fully resolved. Replacement typically costs €1,500-3,000 including labor (5-7 hours workshop time). The KLE may be covered under the PHEV battery warranty (8 years / 160,000 km) depending on BMW's interpretation of component coverage.
B58 coolant system leak
€800 - 2,0004 of 8
Plastic coolant expansion tank, water pump seals, or thermostat housing develop leaks · more· less
The B58 engine uses several plastic and composite components in its cooling system that are prone to degradation under thermal stress. The electric water pump, expansion tank, and thermostat housing are the most common failure points, typically appearing between 80,000 and 120,000 km. In the 750e, the cooling system also services the HV battery via a separate circuit, adding complexity. A water pump and thermostat replacement costs €600-1,200 at an independent specialist. If a coolant leak is left unaddressed, it can lead to overheating and potential damage to the electric motor cooling circuit. The B58's water pump uses a plastic impeller that can crack under prolonged heat cycling.
iDrive 8 software crashes and screen freezes
€0 - 5005 of 8
Infotainment system freezes, goes black, or reboots while driving, particularly on early production cars · more· less
Early 2023 production G70 models experienced significant iDrive 8 instability, including screen freezes, unexpected reboots, and CarPlay disconnects. The system controls nearly all vehicle functions including climate, navigation, and camera displays. A soft reset (hold the volume knob for 70+ seconds) resolves most instances temporarily. BMW has addressed the worst bugs through software updates since mid-2023. Later production cars and those with up-to-date software are largely unaffected. If the head unit hardware fails (rare), replacement costs €1,500-3,000, but most issues are resolved with a free software update at the dealer.
Steering spindle double universal joint failure
€800 - 1,5006 of 8
Steering joint socket can break, causing sudden increase in steering effort · more· less
A recall (24V714000 / KBA 14353R) covers 750e xDrive models built between June and July 2024. The double universal joint in the steering spindle can become damaged, leading to increased steering effort and unusual steering noises. BMW replaces the steering spindle free of charge. The narrow production window means only a small number of cars are affected globally (approximately 22,000 units across all affected models, with about 5,000 in Germany). If purchasing a car from this build period, verify the recall has been completed.
12V auxiliary battery drain
€300 - 6007 of 8
AGM battery drains within days when parked, due to high parasitic draw from multiple control modules · more· less
Modern BMW flagships have dozens of electronic control modules that remain partially active even when the car is parked. Normal sleep-mode draw should be below 50 mA, but draws of 80-300 mA have been reported when modules fail to enter sleep mode properly. The 750e's extensive electronics (HV system monitoring, air suspension, connectivity features) contribute to higher parasitic draw. The 12V AGM battery typically lasts 3-5 years. Replacement costs €250-450 for the battery itself, plus mandatory registration via BMW diagnostic equipment (€50-150 at a specialist). A quality trickle charger is recommended for cars not driven daily.
AC wiring harness damage during filter replacement
€500 - 1,5008 of 8
Cabin filter replacement can damage the AC wiring harness, creating a short-circuit and fire risk · more· less
Recall 26V096000 covers 2024-2025 750e xDrive models where the AC electrical wiring harness routing allows damage during routine cabin air filter replacement. A damaged harness can short-circuit and potentially cause a fire. BMW estimates fewer than 1% of recalled vehicles are actually affected. The fix involves inspecting and, if needed, replacing the harness and adding a retaining bracket. This is a free recall repair. The risk to a used buyer is primarily that a previous owner or independent shop may have already damaged the harness during a filter change without realizing it.
Reliable powertrain, but PHEV and flagship complexity require attention
The B58 engine at the heart of the 750e is one of BMW's most dependable modern engines, and the Gen5 eDrive system is more refined than earlier PHEV hardware. However, the number of recalls issued for a car only a few years into production signals that the G70 platform is still maturing. Air suspension, charging electronics, and the integrated brake system have all required factory intervention. Most of these are covered under recall or warranty for now, but a used buyer approaching the end of the warranty window needs to budget accordingly. Owners who charge regularly and maintain the car at BMW-trained specialists report reliable daily driving.
Service history
Complete BMW dealer or authorized specialist records essential. Verify all software updates have been applied.
Tires
Check tread depth, age (date codes), and uneven wear patterns. Staggered 20-inch or 21-inch setups wear rears faster.
Cold start
Start the car completely cold. Listen for unusual engine noises and verify the electric motor engages smoothly in EV mode.
Test drive
Minimum 30 minutes including highway speeds. Test both EV and hybrid modes. Pay attention to brake feel and any warning lights.
Specific for this vehicle
Verify all recalls completed with BMW using VIN
Check brake system (24V104000, 24V697000), steering spindle (24V714000), AC harness (26V096000), and electric drive software (25V395). Multiple recalls for a new car means verification is critical.
Check HV battery health and charging function
Plug the car in and verify it charges to 100% without errors. Check the displayed electric range at full charge. A significant drop from the original 80+ km range indicates battery degradation. Ask the seller to show the SoH (State of Health) reading via BMW diagnostics.
Test air suspension on all four corners
Park on a level surface and check ride height is even. Activate the suspension lift function if equipped. Listen for compressor running time. Leave the car parked overnight and check for corner sag the next morning.
+ 4 more checksShow less
Inspect air struts for oil misting or rubber degradation
Visually inspect each air strut for signs of oil residue or cracking rubber. A hissing sound near any corner while the car sits indicates a slow leak.
Verify iDrive 8 software is up to date
Check the software version in the system menu. Early production cars with outdated software are prone to freezing and rebooting. Request a dealer update if needed.
Inspect coolant level and condition
Low coolant or discoloration could indicate a water pump or thermostat housing leak. Check for any signs of coolant residue around the engine bay and under the front of the car.
Test all driver assistance systems
Verify forward collision warning, lane keeping, hands-on detection, and 360-degree cameras all function correctly. These systems have been subject to recalls.
Recalls and Technical Service Bulletins
Integrated brake system malfunction, loss of power brake assist and ABS/DSC (2023-2024 models)Critical - verify completed
The BMW 750e G70 has an unusually high number of recalls for a car this new. Contact BMW with the VIN to verify every recall has been completed. The brake system recalls are particularly important as they affect core safety functions.
Warranty Status
Factory warranty (3 years from Nov 2016)May still apply on 2024-2025 models
High-voltage battery warranty8 years / 160,000 km (Gen5 eDrive)
Electric drive componentsCovered under HV battery warranty period
Rust perforation warranty12 years
The earliest 750e models (2023) are approaching the end of their 3-year factory warranty. The high-voltage battery warranty (8 years / 160,000 km) is the most valuable coverage for a used buyer, as it protects against the single most expensive component. Verify the exact first registration date to calculate remaining HV battery warranty. BMW also offers extended warranty packages through dealers.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
