Quote:
Originally Posted by johnung
Question For You If You Have Replaced Your Downpipe? Did you replace any related parts during your installation such as a gasket, 0-ring, clamps, nuts, bolts, etc? I usually replace parts like this especially if they are under harsh conditions like the exhaust system. Please let me know your experience so that I can buy parts to have ready during my downpipe installation? Any advice is greatly appreciated!
Here's the related parts list from top (engine) to bottom (midpipe):
1) Pre-Converter O-Ring (metal gasket) 18-30-7-553-601 $17.72
2) Pre-Converter Clamp 11-65-7-620-508 $20.32
NEW DOWNPIPE- with two welded brackets that each have a bolt hole
Nuts & Bolts?- There are two brackets on the downpipe, each with a hole. There is a bracket with matching holes, called the Converter & Pipe Bracket (18-32-7-643-425 $39.73) that the downpipe must bolt to. A dealer told me that the nut is an M8 (18307525607 $1.27) but I haven't been able to determine what the bolts are. Any ideas? I assume these nuts and bolts might have to be replaced and I don't know what size/part# bolts to order.
4) Converter & Pipe Retainer Ring (Bottom Clamp) 18-30-7-620-349 $26.70 A dealer tech told me that these bottom clamps often don't come off and go back on very well so he makes sure that he has a replacement handy.
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These are 3.5'' N55 PWG parts right? Everything i am seeing says these are not for EWG, but you later said these are the ones you ordered?
Quote:
Originally Posted by dr.roro
These are the OEM part numbers I have written down in my notes for the N55 clamps/gaskets:
18307581970
18307606136
18307620349
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These are the correct parts for 2015 335i EWG RWD 8AT? I have seen these posted on several other threads.