1988 Bmw 750 problems
The BMW 7 Series is a full-size luxury sedan manufactured and marketed by the German automaker BMW since 1977. It is the successor to the BMW E3 "New Six" sedan and is now in its seventh generation.
The 7 Series is BMW's flagship car and is only available in a sedan bodystyle (including long wheelbase and limousine models). It traditionally introduces technologies and exterior design themes before other models in BMW's lineup.
The first generation of the 7 Series was powered by straight-6 petrol engines, and following generations have been powered by inline-4, straight-6, V8 and V12 engines with both natural aspiration and turbocharging. Since 1995, diesel engines have been optional in the 7 Series.
Unlike the 3 Series and 5 Series sedans, BMW does not offer a full M model, but once offered an M performance variant, the BMW M760 with its 6.6L V12 (at the time the most powerful BMW ever made, not to be confused with BMW 760 6.6 V12 which does not offer the same performance). The Alpina B7 (G12) served as the high-performance variant of the 7 Series.
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Common 1988 Bmw 750 problems
The BMW 750 1988, equipped with the M70 V12 engine, is known for several common problems that have been reported by owners over the years. These issues are primarily related to the engine management system and mechanical components.
- Water pump bearing failure: Early 750iL cars were known for electronic management light (EML) problems, with the electronic throttle bodies being particularly troublesome. These problems could lead to the EML light coming on and the car going onto six cylinders. Water pumps can also suffer from sudden bearing failure, which is more challenging to replace on the M73 due to its larger crank pulley damper.
- Oil leaks: The M70 sump is a two-layer alloy affair, and the sump to engine block gasket can leak. The correct repair is to remove the gearbox to access the rear 10mm sump bolts, but it can also be fixed by drilling suitably sized holes into the sump.
- Camshaft wear: While camshaft wear is rare on the M70 and S70, it can happen. If you hear the 'clack-clack-clack' of a worn cam lobe, a new cam isn't hard to fit once the timing chain has been detensioned.
- Mass air flow sensors: Mass air flow sensors can also throw up an engine fault, which can be a common problem in these engines .
- Gearbox issues: Gearbox issues are a common complaint from owners due to failure of the O-rings. Leaks from the rear main seal can cause oil and coolant to mix in the valley of the V .
- Coolant leaks: Coolant leaks are a common problem in the 750i, particularly from the expansion tank .
In summary, the BMW 750 1988, equipped with the M70 V12 engine, is known for several common problems related to the engine management system and mechanical components. These issues include EML problems, water pump bearing failure, oil leaks, camshaft wear, mass air flow sensors, gearbox issues, and coolant leaks. Regular maintenance and careful inspection of these components can help prevent these issues and ensure the longevity of the vehicle.
Is the BMW 750 reliable?
The BMW 750Li Reliability Rating is 2.0 out of 5.0, which ranks it 26th out of 30 for luxury fullsize cars.
What are the most common problems with BMW 7 Series?
BMW 7 Series Common Problems and Solutions
- Engine Stutter. Problem: ...
- Low Oil Pressure. Problem: ...
- No Parking Brake. Problem: ...
- Blurry Cameras. Problem: ...
- Engine misfiring. Problem: ...
- Electric window problems. Problem: ...
- Air conditioning failure. Problem: ...
- Door locks failure. Problem:
What is the top speed of the 1988 BMW 750iL?
158-mph
With a 158-mph top speed, it can hang with exotics. The price, too, is exotic: about $70,000. The 1988 BMW 750iL crams a 5.0-liter V-12 into the engine bay.
What is the difference between BMW 750 and 750l?
The L stands for "long wheelbase". The Li has a longer wheelbase and wider rear doors. The additional length is used entirely to make sitting in the rear more comfortable. So the Li is for people who like being driven by a chauffeur, while the i is for people who like to drive themselves.
Is the BMW 750 reliable?
The BMW 750Li Reliability Rating is 2.0 out of 5.0, which ranks it 26th out of 30 for luxury fullsize cars.
What are the most common problems with BMW 7 Series?
BMW 7 Series Common Problems and Solutions
- Engine Stutter. Problem: ...
- Low Oil Pressure. Problem: ...
- No Parking Brake. Problem: ...
- Blurry Cameras. Problem: ...
- Engine misfiring. Problem: ...
- Electric window problems. Problem: ...
- Air conditioning failure. Problem: ...
- Door locks failure. Problem:
What is the top speed of the 1988 BMW 750iL?
158-mph
With a 158-mph top speed, it can hang with exotics. The price, too, is exotic: about $70,000. The 1988 BMW 750iL crams a 5.0-liter V-12 into the engine bay.
How reliable is BMW V12 engine?
The BMW V12 is a strong, unstressed and mechanically quite simple engine – no VANOS or multi-valve technology. It's virtually unheard of to suffer head gasket failure or crankshaft bearing issues, and whilst camshaft wear can happen on the M70 and S70, it is rare.
1988 Bmw 750 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Bmw 750 problems, we found that the most common problems with these 2023 model year vehicles are:
- Engine and engine cooling problems
- Visibility problems
- Electrical system problems
The graph below shows statistics for all 1988 Bmw 750 vehicle components and the number of complaints received.
1988 Bmw 750 complaints
The NHTSA has received 5 complaints about various vehicle components related to the 1988 Bmw 750.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1996-02-13
- VIN: WBAGC8314J2
- Components: ELECTRICAL SYSTEM
- Summary: IGNITION COIL SHORTD OUT, CAUSING ELECTRONIC CHIP (DME) CONTROLLING ENGINE TO BURN OUT, WHICH IN TURN, RESULTED IN (EML) WHICH CONTROL FUEL FLOW TO BURN OUT. *AK
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1995-08-12
- Fire: 1
- Components: ENGINE AND ENGINE COOLING
- Summary: THE VEHICLE WAS IN MOTION AND THE ENGINE COUGHT FIRE ( ENGINE COMPARTMENT FIRE). *AK
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1995-08-12
- Fire: 1
- Components: ENGINE AND ENGINE COOLING
- Summary: THE VEHICLE WAS IN MOTION AND THE ENGINE COUGHT FIRE ( ENGINE COMPARTMENT FIRE). *AK
VISIBILITY PROBLEM
- Date Of Incident: 1992-07-01
- Fire: 1
- VIN: WBAGC8318J2
- Components: VISIBILITY
- Summary: WINDSHIELD WASHER FLUID FIRE CAUSED BY A DEFECTIVE WINDSHIELD WASHER HEATER. *AK
VISIBILITY PROBLEM
- Date Of Incident: 1994-04-29
- Fire: 1
- VIN: WBAGC8316J2
- Components: VISIBILITY
- Summary: WINDSHIELD WASHER/HEATER DISCHARGE NOZZLE SHORTED OUT, CAUSING VEHICLE FIRE. *AK
1988 Bmw 750 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 3 recalls for different components of the 1988 Bmw 750.
- Manufacturer: BAYERISCHE MOTOREN WERKE
- Components: SEAT BELTS:FRONT:BUCKLE ASSEMBLY
- Summary: UNDER CERTAIN CONDITIONS, FRONT SEAT CENTER, FOLD-DOWN ARM REST MAY CONTACT THE SAFETY BELT BUCKLE, CAUSING DAMAGE TO THE RELEASE BUTTON AND PREVENTING THE BELT TONGUE FROM LATCHING WHEN BUCKLING UP.
- Consequence: OCCUPANT WOULD NOT BE PROPERLY RESTRAINED AND COULD BE INJURED IN THE EVENT OF A SUDDEN STOP OR ACCIDENT.
- Remedy: REPLACE FRONT SEAT SAFETY BELT BUCKLES WITH SHORTER VERSION THAT WILL NOT CONTACT THE ARMRESTS. NOTE: OWNER NOTIFICATION DATE; 2/90 IS PREPARED IN DRAFT FORM.
- Manufacturer: BAYERISCHE MOTOREN WERKE
- Components: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
- Summary: ACCELERATOR PEDALS MAY NOT HAVE BEEN PROPERLY ATTACHED TO THE FLOOR PAN DURING ASSEMBLY.
- Consequence: UNDER CERTAIN CONDITIONS, PEDAL MAY BECOME STUCK AND NOTFULLY RETURN TO THE IDLE POSITION WHEN THE DRIVER REMOVES HIS FOOT FROM THEPEDAL CAUSING LOSS OF CONTROL, WHICH COULD RESULT IN AN ACCIDENT.
- Remedy: COMPLETELY SEAT LUGS IN THE RECESSES OF THE FLOOR PAN TO ASSURE PROPER ATTACHMENT OF THE GAS PEDAL.
- Manufacturer: BAYERISCHE MOTOREN WERKE
- Components: SEATS
- Summary: THE DRIVER AND/OR PASSENGER SEATBACKS MAY NOT HAVE BEEN FULLY ATTACHED TO THE SEAT BASE RECLINING ARMS (ATTACHING BRACKETS).
- Consequence: THERE MAY BE LOOSENESS OF, OR NOISE IN, THE SEATBACK;ALSO, DURING A SEVERE REAR IMPACT, SEATBACK MIGHT NOT SUPPORT THE OCCUPANT.
- Remedy: MANUALLY SEAT THE SEATBACK ON THE BASE.
Additional sources
More sources of information about 1988 Bmw 750 problems:
Timm's BMW E31 8-Series Common Problems
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Other years of Bmw 750
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