I had a little stumbling the other day on the highway. No SES light, but I did pull a Peake code "81" - which is "lack of fuel".
Replaced the Fuel Filter today. Some have mentioned that BMW says the OEM filter is good to 100K. Uh, I beg to differ as is evident on mine.
With merely 51K miles on my M5, I removed the STOCK (date stamped) fuel filter and replaced it with a new one (HENGST). (p.s., guys this is a easy job!)
I did the ol' blow test which really took A LOT of pressure to get air flowing. Of course there is gas saturated in the filter, but I feel strongly this restriction was more than just normal saturated gas in the filter element. I broke out the hack saw and Dremel, and opened up the stock filter out of curiosity sake). I am fairly certain the filter is NOT supposed to be black. A mere rub with a paper towel showed some real crap!
Something else I noticed is the tweaking of the element. That can't be healthy and probably assisted in the restriction (one would assume).
-QUICK FUEL FILTER CHANGE:
1) Jack drivers side, support vehicle for safety
2) Remove plastic cover shield under the car
3) Relieve fuel pressure (A- press. reflief valve)
4) Unbolt (2) 10MM clamp bolts
5) Loosen filter at NUT end, 19mm wrench on the filter, 24mm wrench on square regulator
6) (B- other end of filter) push in white pressure clip, pull filter out
7) Install new filter ( with NEW copper crush washer) and by reverse of above (mark date on new filter)
Replaced the Fuel Filter today. Some have mentioned that BMW says the OEM filter is good to 100K. Uh, I beg to differ as is evident on mine.
With merely 51K miles on my M5, I removed the STOCK (date stamped) fuel filter and replaced it with a new one (HENGST). (p.s., guys this is a easy job!)
I did the ol' blow test which really took A LOT of pressure to get air flowing. Of course there is gas saturated in the filter, but I feel strongly this restriction was more than just normal saturated gas in the filter element. I broke out the hack saw and Dremel, and opened up the stock filter out of curiosity sake). I am fairly certain the filter is NOT supposed to be black. A mere rub with a paper towel showed some real crap!
Something else I noticed is the tweaking of the element. That can't be healthy and probably assisted in the restriction (one would assume).
-QUICK FUEL FILTER CHANGE:
1) Jack drivers side, support vehicle for safety
2) Remove plastic cover shield under the car
3) Relieve fuel pressure (A- press. reflief valve)
4) Unbolt (2) 10MM clamp bolts
5) Loosen filter at NUT end, 19mm wrench on the filter, 24mm wrench on square regulator
6) (B- other end of filter) push in white pressure clip, pull filter out
7) Install new filter ( with NEW copper crush washer) and by reverse of above (mark date on new filter)
