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    Warm engine start

    My 1991 e30 318is was having a problem when starting after it had been parked with the engine hot for more than 15-20 mins.

    Symptoms were as if it had no fuel in the line. Cranked over 6-8 times and then stumble and start and run fine.

    I did research on the internet and found that similar problems had been posted on other BMW websites. see: http://www.bmwe34.net/E34main/Trouble/535ihot_start.asp

    I never checked with BMW in Canada for availability.

    Note: The repair kit is inexpensive but costs more than its worth in shipping.
    Bulky packaging. Kit consists of the replacement fuel line with the check valve already attached (you will cut this to length for your application) and some new clamps (crimped type clamps you may wish to replace with screw type clamps) and some insulation tubing and plastic nut covers (this can be discarded as you may not use this for your repair)

    I finally had enough and I purchased BMW check valve p/n 16149068988 from Steve Haygood in the states. You can see his site at http://www.stevehaygood.com:80/





    Pre install



    Post install



    Car starts without hesitation now!!!!

    Important Note: Do this outside not in the garage!!!!

    Very simple. Disconnect the fuel pump power supply and fuel sender connectors. Takes 30min, just have everything ready, Clamps, tools, fire extinguisher and pre cut the fuel hose before you disconnect the feed line.

    Be prepared for some fuel to leak back down towards the fuel pump, have some rags handy.
    Last edited by dark_islight; 01-06-2008, 06:13 PM. Reason: safety
    dark_islight
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    #2
    nice thanks for the write up
    Continuous For Sale Thread
    323i s50

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      #3
      Is this under the rear seat? im a little confused at what im lookin at.

      Comment


        #4
        Originally posted by SLUCK View Post
        Is this under the rear seat? im a little confused at what im lookin at.
        Yes, under the rear seat passanger side under the access panel....
        dark_islight
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        Comment


          #5
          Thanks.

          Comment


            #6
            does this only work for the m40 or can it also work for the m20? because i also have slightly easy starts in the moring with a cold engine, but have hard starts when the engine is warm.

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              #7
              This retrofit can be done on all e30's that have the fuel pump in the tank under the rear seat as shown in the DIY. I did this on my 91 318is with the M42 engine. I have had no starting issues since the install.
              Last edited by dark_islight; 01-20-2008, 07:34 AM.
              dark_islight
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