• LH (Driver Side) Front Door
  • Includes motor
  • Fits E39 body types as listed
  • Power operation
  • Direct replacement
  • Built to strict quality control standards


Please Note: We are committed to offering the absolute best value for our customers. If you want a highest quality window regulator at a great price, please see our other "High Quality" window regulator listings. If price is your main concern, we are offering this economy style window regulator as well. It is the same one that most internet sellers are offering. While this window regulator is a good replacement, it is not backed by the same warranty as our high quality regulator.


  • This repair is easier than you may think. You'll find our installation videos helpful. In our experience removing and replacing the door panel is the most involved step in the repair. On most vehicles this only requires removing a few screws and push-in clips.
  • You'll get a great feeling of accomplishment after you complete this repair knowing you saved money, and you didn't have to give up your car for a day at the repair shop. Your passengers and other drivers will be amazed.

Fit guaranteed

  • 1A Auto will refund you with no hassle, if this window regulator does not fit the application stated.
    •  This regulator will install just as your original does. Save time and money.


  • Be confident this part will work right. Every regulator is tested after assembly to make sure all mechanisms are working correctly.
  • It is important that your new regulator works for a long period of time. The design of this regulator is tested to withstand 10,000 cycles. That is enough to raise and lower your window 3 times per day for 9 years.


  • Windows that don't work can be frustrating. They can also hurt your vehicles value. An inoperable window could mean $200-$500 discounted off a dealer trade value or asking price.
  • Some shops and dealers charge more for parts and repairs when they think you don't know what is involved. Now you can get the value you deserve. Knowing what this repair entails can be the difference between the value of doing it yourself, or the pain of a costly repair bill.
Direct Fit

Direct fit, pre-assembled parts made ready to fit your vehicle and provide easy and trouble-free installation.

Rigorously Tested

Build to strict quality standards

Highest Quality Materials

Made from the highest quality materials for extreme durability and premium performance.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

5.0 / 5.0
1 Review
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1 Stars
BMW window regulator
Just like the original part. I have previously purchased and installed a less expensive version of my 5 series BMW driver side window regulator from another online company, it looked cheap, material was not of the same quality just from looking at it (made in China) so I decided to give it try. It worked well but only lasted less than 1 month after installation and failed. It was the weak material it was made of from looking at it after taking it off the car.
I ordered a new regulator from this guys (have never ordered from them before) and after talking to them over the phone, the first thing I was impressed with was the warrantee that came with the product. Yes, it cost me about more but the quality of the product was significantly better just from looking at it. Right out of the box, it looked like the original part, very strong and sturdy. It gave me quite a confidence knowing that this regulator will last me for a really, really long time. Couldn't be more please with the quality of this product and the company (1aauto) that sales it. No, I don't work for them nor do I get paid to make this comment. I am just a very pleased customer who loves a good quality product and I feel it is worth sharing it with others so they don't waste their money somewhere else. Spend the extra bit of money it will cost you, it is well worth it and this company guarantees it. 1aauto, you got yourself a customer who will come back next time I need a part.

December 13, 2017
5 months ago
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Vehicle Fit

  • 2001-2003 BMW 525i Front Power Window Regulator with Motor Driver Side
  • 1997-2000 BMW 528i Front Power Window Regulator with Motor Driver Side
  • 1999-2000 BMW 528iT Front Power Window Regulator with Motor Driver Side
  • 2001-2003 BMW 530i Front Power Window Regulator with Motor Driver Side
  • 1997-2003 BMW 540i Front Power Window Regulator with Motor Driver Side
  • 1999-2000 BMW 540iT Front Power Window Regulator with Motor Driver Side
  • 2000-2003 BMW M5 Front Power Window Regulator with Motor Driver Side

This part replaces:

  • Partslink BM1350103
  • Hollander 125-58598L
  • OE # 51 33 8 252 393
Part #: 1AWRG02588