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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 12-14-2014, 06:54 PM
ColtonHurt ColtonHurt is offline
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1986 bmw 325e

What is the reservoir underneath my rear wheel well on passenger side for?? Finally got the timing belt replaced along with water pump and thermostat etc.. Now just gotta figure out why it is vibrating at higher speeds and when braking. Was just looking around and notices this flap down door was open and had a reservoir in there.
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Old 12-15-2014, 07:47 PM
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downhiller downhiller is offline
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1986 bmw 325e

the tank under the rear seat? vibration where? engine, steering wheel?
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Last edited by downhiller; 12-15-2014 at 07:48 PM.
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Old 12-15-2014, 08:18 PM
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hornhospital hornhospital is offline
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I think he's talking about the intermediate/surge fuel tank that the low pressure pump keeps filled so the high pressure pump gets a continuous flow of fuel. Not sure what BMW calls it.
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Old 12-15-2014, 10:35 PM
ColtonHurt ColtonHurt is offline
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Sounds like a reasonable answer. And 2.7l engine and vibration through the steering wheel when driving around 55-60 and when braking. Sorry I ran that all together at the first post
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Old 12-16-2014, 05:29 PM
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downhiller downhiller is offline
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vibration sounds like warped rotors or an unbalanced wheel(s). first thing i would do is take it in for a rotate and balance or balance only (depending on when your last rotation was).
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Old 12-16-2014, 05:39 PM
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Is he referring to the plastic fuel overflow/ vapor tank located in the car's right rear wheel well?
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Old 12-16-2014, 06:11 PM
ColtonHurt ColtonHurt is offline
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Yes BigBoy740il
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Old 12-16-2014, 06:14 PM
ColtonHurt ColtonHurt is offline
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Just took it for a drive slight wobble at higher speeds 60mph ish ++ but wobbles at its worst anytime you brake. Def. sounds like warped rotors! What do you guys recommend brand wise for rotor replacements?? Thanks for everyone's input too!!
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Old 12-16-2014, 07:15 PM
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Cool.... Here is a photo. He is referring to item #1. For standard rotors, you cant go wrong with Brembo blanks. Also pick up a setup rotor hold-down bolts and dont forget to apply some antiseize to prevent them from rusting onto the hub bearing.
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Last edited by BigBoy740il; 12-16-2014 at 07:21 PM.
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