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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 10-02-2012, 01:50 PM
FLE39 FLE39 is offline
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Location: Tampa
Join Date: Sep 2012
Posts: 639
Mein Auto: 2003 530i 5spd Manual
Front Turn signal - 3457 or 3157

I searched, even google. Seems to be a up in the air item. Front turn signal bulbs need replaced in my car. I pulled one last night, it was flaking amber, 3457. BMW owner's manual doesn't say jack crap about the #. Just a 21W dual filiment bulb. Closest match I've found is at Pelican parts. That's BS. I'm running a 3157A in it since yesterday b/c it's all I had at home and it works fine. I need a part # I can get at Autozone tonight so I can replace the set L&R. Thanks in advance.

Edit: The socket has 3457A cast into it. Guess that answers my que. So FYI for you all.

Edit 2: did some research on the bulb specs and there's not much difference between the 3157's and the 3457's. Which Sylvania has 3357/3457 on the same box. So in the end, the 3157's I had laying around work perfect. I'm leaving them. But if you have to buy new, i'd buy the 3357/3457 ones. Still don't understand what the differences are... that's probably why these companies have started making one bulb for multiple part #'s.
DD: 2003 530i 5spd manual sport package. Conti DWS's, Llumar ATR, White LED lighting. TLC on-going.

Garage queen: '07 335i Sedan, base pkg, 6spd Manual, Procede 3 V5 w/NLS, staggered 18" 313's w/Conti DWS's, OS Giken TCD LSD, VAC Street Diff Cover, Akebono Euro Pads, CDV Removed, Black BMW Grilles, Interior & Exterior white LED lighting, LUX Angel Eyes, Debadged, Llumar ATR Tint.

Last edited by FLE39; 10-02-2012 at 07:09 PM.
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