1991 Bmw 735 problems

Common 1991 Bmw 735 problems

The BMW 735i, produced in 1991, is a luxury car that has been known for several common issues. These problems can be categorized into engine problems, electrical faults, and cooling system issues.

One of the most common engine problems is with the valvetrain, specifically the hydraulic lifters. These lifters can fail, resulting in a ticking or tapping noise from the engine. This can be caused by sludge buildup in the engine, which can prevent the lifters from properly pumping up. Regular oil changes and the use of high-quality synthetic oil can help prevent this issue.

Another common engine issue is with the cylinder head. The cylinder head gasket can fail, causing oil leaks and overheating issues. The cylinder head itself can also crack, causing similar issues. This can be caused by overheating, which can be prevented by regular cooling system maintenance and attention to any signs of overheating.

The timing chain is another component that can cause issues with the BMW 735i engine. The timing chain tensioner can fail, causing the chain to become loose and skip teeth on the timing gears. This can cause serious engine damage, so it is important to address any signs of chain noise or issues with the timing system.

The BMW 735i engine is also known for consuming oil, particularly in older models. This can be caused by worn piston rings, valve seals, or other engine components. Regular oil changes and the use of high-quality synthetic oil can help mitigate this issue, but it may also require engine repairs to fully address the issue.

In terms of electrical faults, the BMW 735i is known for having issues with the shifter assembly. The selector can become dirty and corroded over time, causing the car to lose signal and have issues with shifting. This can result in trans program errors and other shifting issues.

Additionally, the E32 generation of the BMW 735i, which includes the 1991 model, is known for having issues with the cooling system. The radiators are made of plastic and are prone to cracking, particularly around the top hose connection. The cooling system is also known to have issues with the expansion tank, which can crack and leak.

In summary, the BMW 735i is a complex and sophisticated car that requires regular maintenance and attention to prevent and address issues. Owners should be aware of these common issues and stay on top of routine maintenance tasks to keep their cars running smoothly. With proper care and attention, the BMW 735i can continue to provide years of enjoyment and satisfaction.

How much horsepower does a BMW 735 have?

7 Series Sedan 735i M Sport Performance

7 Series Sedan 735i M Sport 2998 cc engine offers 286 hp of power and 400 Nm of torque.

Are 2017 BMW 740i reliable?

The 2017 7 Series has an above-average predicted reliability rating of 3.5 out of five from J.D. Power.

What is the top speed of a BMW 735?

Models

Model	Engine	Top Speed
730i	M60B30 V8	230 km/h (143 mph) (AT) 233 km/h (145 mph) (MT)
735i	M30B35 I6	225 km/h (140 mph) (AT) 232 km/h (144 mph) (MT)
227 km/h (141 mph) (AT) 235 km/h (146 mph) (MT)
740i	M60B40 V8	240 km/h (149 mph)**

What is the most powerful BMW 7?

i7 M70

BMW has unveiled the top-spec version of its i7 all-electric luxury saloon. Munich's most powerful all-electric car is now the i7 M70, with two electric motors and a combined output of over 660PS (485kW). It takes the place of the old V12-engined M760s which used to head the 7 Series family.

1991 Bmw 735 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Bmw 735 problems, we found that the most common problems with these 2023 model year vehicles are:

• Visibility problems
• Power train problems
• Seats problems
• Vehicle speed control problems
• Steering problems

The graph below shows statistics for all 1991 Bmw 735 vehicle components and the number of complaints received.