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it really is supposed to do that... (archive)

[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]

Posted by Rob Levinson on June 16, 1999 at 22:32:20:

In Reply to: Steering boxes, check lights. Help! Rob? posted by brandon on June 16, 1999 at 20:46:41:

...and check light flashing due to a detected error in the brake light system. when checked, there are no lights out, and error disappears when brake pedal is applied. always on start, the error returns, and i have trouble believing this is a factory setting.

It really is supposed to do that... the check system doesn't "see" the brake lights as functional until you activate them for the first time, then it is satisfied that they work. It's not an error, it's just reminding you to check the lights.

I also wonder if it's a "safety" item that BMW built in... you press on the brakes and are thereby making sure that the system has pressure (as can be lost with a defective pressure accumulator). Imagine if you didn't have this and your brakes were bad... you'd drive off and shoot right through the first stop sign! By stepping on the pedal initially, you build pressure and also feel if there's something wrong with the brakes.

my car did not do that when i first bought it, but started shortly after, and has continued ever since.

I'm sure it did do that when you got the car, you just didn't notice. A show of hands... does anyone's E28 not have this behavior?

Of the four E28s that I have owned (and many others that I have driven) they all do that. They're supposed to. Don't worry about it.

: as to the steering, can these be rebuilt, and if not, what are other options?

Play in the steering can usually be traced to a loose tension-nut. There's a large nut that circles the steering column within the dash. It can be tightened to reduce the amount of free play.

any ideas appreciated :)

How about a combination popcorn popper and hair dryer? We'll make a fortune from college girls! Is that the kind of idea you had? ;-)

- Rob
'88 M5 Dinan Turbo
ex-'85 535i Callaway Turbo
ex-'86 535i
ex-'85 535i

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