A common issue with BMW engines from this period is oil leaks, which can occur from the valve cover gasket, oil pan gasket, or timing cover gasket.

The N63 engine used in the 750xi and ALPINA B7 has been known to have problems with the timing chain, which can lead to significant engine damage if not addressed.

Fuel injector issues can lead to misfires, poor fuel economy, and rough idle. This is a known problem in BMW's V8 engines.

Problems with the water pump, thermostat, and other cooling system components can lead to overheating and potential engine damage.

The turbochargers on these models can fail, leading to reduced power and efficiency. This is a particularly known issue in the N63 engine.

The HPFP can fail, leading to starting issues and poor engine performance. This is another common issue in BMW's V8 engines from this period.

Direct injection engines like the N63 can suffer from carbon buildup on the intake valves, leading to performance issues and rough idle.

Electrical issues can cause excessive battery drain, leading to frequent battery replacements or a need for a larger battery capacity.

BMW engines, especially the V8 in the 750Li/ALPINA B7, are known for developing oil leaks from various seals and gaskets over time.

These engines are prone to valve stem seal issues, which can cause excessive oil consumption and smoke from the exhaust.

The N63 engine in these models can suffer from timing chain wear and failure, leading to engine performance problems and potential severe engine damage.

The high-pressure fuel pump in these vehicles can fail, causing engine stalling, rough idling, and difficulty starting.

The twin-turbo setup on the ALPINA B7 and 750Li can experience turbocharger failure or wastegate issues, leading to reduced performance and increased emissions.

Coolant leaks from the water pump, thermostat, or other cooling system components are common and can lead to engine overheating.

Direct-injection engines like the N63 can suffer from carbon buildup on the intake valves, leading to reduced performance and fuel efficiency.

Electrical issues can cause the battery to drain unexpectedly, which is a common problem in these models.

These engines can experience ignition coil failures, causing misfires and reduced engine performance.

Common in BMW engines, often from valve cover gaskets, oil pan gaskets, or rear main seals.

Issues with the water pump or radiator can cause coolant leaks, leading to overheating.

BMW engines are known for timing chain tensioner failures, leading to potential engine damage.

Can cause issues with engine performance and starting problems.

For the ALPINA B7 variant, turbochargers can fail, leading to reduced performance and increased emissions.

The variable valve timing system can fail, causing rough idling and poor engine performance.

Problems with the engine control unit (ECU) and various sensors can lead to inconsistent performance and warning lights.

Direct injection engines, like those in the BMW 750i and ALPINA B7, can suffer from carbon buildup on intake valves, reducing performance and fuel efficiency.

Radiator, thermostat, and expansion tank issues can lead to overheating problems.

The 2008 BMW 750i, especially with a high-performance engine like the Alpina B7, is prone to oil leaks from the valve cover gaskets and oil pan gaskets.

Coolant leaks due to failing hoses, radiators, or water pumps are common in BMWs of this era and can lead to overheating issues.

The N62 engine in the 2008 BMW 750i can experience timing chain tensioner failure, which can lead to serious engine damage if not addressed.

The valve stem seals in the N62 engine often wear out, causing excessive oil consumption and blue smoke from the exhaust.

High-performance engines like the Alpina B7's can suffer from clogged or failing fuel injectors, leading to misfires and rough idling.

The crankcase ventilation system can become clogged, causing excessive pressure build-up and oil leaks.

The complex electronic control systems in the 2008 BMW 750i can sometimes fail, leading to various engine management issues.