Tips for refitting 335i airbox.... - BMW 3-Series (E90 E92) Forum

jonnydrama · 02-20-2011, 10:51 AM

My 335i is in the dealers next week for some warranty work so I thought better safe than sorry and removed the BMS filters and JB3.....

Got the filters removed easily, The JB3 removed and wires fitted back into the ECU.

Tried literally for about an hour to push the plastic pipe ends onto the factory airbox once it was in position until I was getting properly frustrated. Took it off and sanded down the ends of the airbox a tiny bid (thinking the clamps on the BMW filters may have distorted the plastic piping) and applied some motor oil, still no good.

Eventually had a random thought to heat up the pipes so they were a bit more flexible (you can use anything I guess, heat gun or hairdryer), with a bit of WD40 they slipped on easily first time.

Hope that'll help someone if they have to do the same!

zltm089 · 02-20-2011, 11:31 AM

Thanks for posting!

Yahoo · 02-20-2011, 12:54 PM

Yep - heat up the end of the pipes with a hair dryer for a little while, this works a treat.

jonnydrama · 02-20-2011, 01:04 PM

Quote:

Originally Posted by Yahoo

Yep - heat up the end of the pipes with a hair dryer for a little while, this works a treat.

Still took me a while to think of it, never came into my head as all my previous cars have had silicone/rubber hoses

02-20-2011, 10:51 AM	#1
jonnydrama Second Lieutenant Drives: E90 335i Join Date: Dec 2009 Location: Scotland Posts: 233 iTrader: (0)	Tips for refitting 335i airbox.... My 335i is in the dealers next week for some warranty work so I thought better safe than sorry and removed the BMS filters and JB3..... Got the filters removed easily, The JB3 removed and wires fitted back into the ECU. Tried literally for about an hour to push the plastic pipe ends onto the factory airbox once it was in position until I was getting properly frustrated. Took it off and sanded down the ends of the airbox a tiny bid (thinking the clamps on the BMW filters may have distorted the plastic piping) and applied some motor oil, still no good. Eventually had a random thought to heat up the pipes so they were a bit more flexible (you can use anything I guess, heat gun or hairdryer), with a bit of WD40 they slipped on easily first time. Hope that'll help someone if they have to do the same!
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02-20-2011, 11:31 AM	#2
zltm089 Major General Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON Posts: 6,555 iTrader: (0) Garage List 2006 BMW 335i [5.00]	Thanks for posting! __________________ Current Car: E92 335i SE Dream Cars: AMG SL65 Black,GallardoSuperleggera, GTR 2012, Agera R, F430 Scuderia, DBS, EVO X FQ400, Lexus LFA, F10 M5, e92 M3, GT3 RS4.0, Ferrari 458, Ferrari F12, R8 V10 plus, Jaguar F Type V8, Lamborghini LP700-4 Aventador, Chevrolet Camaro ZL1, C63 AMG Coupe Black, Vanquish 2012, Laferrari, GT3 991.

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02-20-2011, 12:54 PM	#3
Yahoo Captain Drives: 335i e91 LCI msport Join Date: Jul 2007 Location: Lincolnshire Posts: 816 iTrader: (3)	Yep - heat up the end of the pipes with a hair dryer for a little while, this works a treat.