Top 20 1990 BMW 5 Series Questions & Answers

There is a round plastic container near the left hand side between engine and mud guard. Unscrew the top and you will find a dipstick that shows correct fluid level. Use transmission oil sold at garages etc. The brake fluid container is on the same side near the radiator.

1990 BMW 5... | 60 views | 0 helpful votes

have you checked horn fuse?

1990 BMW 5... | 59 views | 0 helpful votes

Hi, you dont say how much oil is in the body but if its a high miler some residue is normal as it seems to make its way up via the vent tube.This can be cleaned out with a good throttle body cleaner. But remove the body from the intake system first as you dont want to dose the engine with this stuff as it will cause the engine to over run if too much is fed into the intake. Let it dry out before re starting the car. Be carefull.

1990 BMW 5... | 47 views | 0 helpful votes

You will need to take it to somebody that has a scan tool or a OBD 2 or better scanner. I think ammco, kragen, or autozone will hook up a scan tool and turn it off for free. check it out

1990 BMW 5... | 27 views | 0 helpful votes

Do not believe it should stay on. Does it stay on even after you open the door and remove the key? Does it ever go out? Let me know and I'll try and help

1990 BMW 5... | 49 views | 0 helpful votes

its ounds like the starting motor but get the anty theft checked as the cut off might be playing up

1990 BMW 5... | 242 views | 1 helpful votes

Sounds like you have problems with a part called the valve body inside the transmission or other hydraulic control problems, i suspect you will need to overhaul the transmission to cure this.

1990 BMW 5... | 208 views | 0 helpful votes

You could have air in the clutch cylinder or there could be wear in your clutch master cylinder, You need to start by checking the fluid the the reservoir and then try bleeding the clutch, if this doesn't help then you will need a repalkcement master cylinder, It is recommended that you replace the slave cylinder at the same time as well as the flexible rubber hose.

1990 BMW 5... | 117 views | 0 helpful votes

Here is a thread I found that has a few suggestions that appear relevant:

If you find a solution there post it here for the next BMW owner with the same issue!

1990 BMW 5... | 573 views | 0 helpful votes

may need a noid or led 12volts test light.
check power at ignition coil, check signal at the ignition coil, check signal at fuel injectors.
It may be a security system, no crankshaft sensor signal, bad ignition coil, ignition rotor

1990 BMW 5... | 85 views | 0 helpful votes

Bmw E34s have a big fuse right after the battery that protects the car electrical harnesses.
Failure syndromes:
• Intermittent simultaneous falure of wipers, sunroof, windows, central locking, radio...
• No power, like if the battery was dead.

525i Procedure

Tools/Parts Required:
  • 10mm wrench or socket.
  • New fuses.
1. Disconnect the battery.
2. Open the fusible link box.
3. Remove the 4 x 10mm screws and change the fusible links.
4. Installation is reverse of removal.
Good Luck, Mike please let me know if this is helpful.

1990 BMW 5... | 477 views | 6 helpful votes

Sounds like U need to purge the trapped air out & possibly change the thermostat & see if that worx....( you didnt mention if U replaced the radiator)

1990 BMW 5... | 201 views | 0 helpful votes

Check fuel filter first. If OK, then check points, distributer and timing advance - or electronic ignition.

1990 BMW 5... | 36 views | 0 helpful votes

Computer needs to re-learn. it will take a few cycles before it goes back to normal operation. Drive it around, up & down hills, hi & low rpm & speeds, shut it down for a bit and start over again. Let the car cool down a bit before repeating. In the future, if u have to remove a battery cable, make or buy a gadget that connects a 9v battery to your cigarette lighter to hold onto the info...

1990 BMW 5... | 183 views | 1 helpful votes

Yes but you're not going to gain that much HP for the effort. If you can locate a 3.5 (535 or 735 motor) you'll have better success in getting HP out of it. Ideally if you can locate 3.5 out of an M5 you'ld be stylin'

1990 BMW 5... | 50 views | 0 helpful votes

Because it's a BMW and as far as i'm concern, they are a heap of s**t. I've just been told today by a BMW dealership in Dublin that they want a €160 to look at the radio and between €900 - €1,200 to fix the radio. Never before I had a radio problem in my life until I bought the BMW. It has my heart broken and my pocket empty. Pure junk.

1990 BMW 5... | 96 views | 0 helpful votes

time for brand new bmw. 20+ years is long enough to be messing with this old dinosaur.

1990 BMW 5... | 219 views | 0 helpful votes

What happens if you turn the VOLUME to MAXIMUM?

If still no sound , then suspect problem with the speaker , connections or wiring

If loud hissing etc. then speakers appear OK so suspect a radio fault

1990 BMW 5... | 532 views | 1 helpful votes

you need to replace fuel pump its located behind rear seats

1990 BMW 5... | 165 views | 0 helpful votes

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