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Old 10-19-2019, 10:18 AM
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You don't see this issue in Volvo, as Volvo uses a "scissor" system to raise and lower window.

BMW will never learn from Volvo.

For those reading this thread, there are 2 distinct modes of failure:

1. The famous plastic clips (a few-dollar fix), well documented in forum.

2. The WR itself, pulleys break, cable mangled etc.
In this situation the question is OEM vs aftermarket.
- OEM for LF 51338254911 is $185 at dealer.
- Aftermarket includes URO, Dorman. I recently saw VDO for $95 (probably part of Siemens) but I do not know VDO reliability.
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  #12  
Old 10-19-2019, 11:41 AM
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Quote:
Originally Posted by cn90 View Post
You don't see this issue in Volvo, as Volvo uses a "scissor" system to raise and lower window.
IIRC BMW used the scissor system in the E36 chassis. Those regulators fail if you look at them funny (also usually due to broken sliders/clips FWIW).

If you ever have to replace an e53 regulator... I'd buy a used OEM regulator w/ or w/o motor and add new clips and sliders to it, plus the "zip tie" mod for good measure. All in should be ~ $50 and will most likely never have to mess with that regulator again. New sliders and clips pro-actively will almost always prevent failure of the regulator.
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  #13  
Old 10-19-2019, 01:52 PM
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I should clarify the Volvo scissor system.
When it fails, it is just the $5 plastic slider clip x2.
So $10 later, the Volvo window works again.
The scissor system is very robust.

The problem with the BMW plastic pulley and
cable system is that: while it saves a few grams
in weight, it is a flimsy system that fails frequently.
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