Hi all,
After a short spell away from bmws i finally decided that i wanted yet another.. So i purchased an 01 M5 in Silver.. Lovely you might say, but and yes there is a BIG BUT.. The car has had a NEW VANOS installed by a bmw dealership.. GREAT you might say, BUT the ecu is still showing a problem with the vanos.. Now bmw have reprogramed the ecu with all original data and guess what ? Still it showes the problem..ahhhhh.... Now all is not lost because i can still drive the beast but i have to unplug the two connectors from the air intake hoses.. My quest is how can i solve this problem? Has anyone ever had this problem?all replies would be greatly be appreciated ....
The connectors going to the intake air tubes are for the MAFs (mass airflow sensors).
When both of those are disconnected the DME (engine computer) is forced into an emergency program.
If the car has a vanos problem (which can be horribly expensive), you absolutely got to act fast to get it properly taken care of while the car deal is still fresh.
Try to get a printout of the diagnostics run at the dealership, and scan it and post it here, and weŽll know more.
David
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2000 M5 LeMans blue/Silverstone sport interior, double glass windows, all options except alcantara ceiling and trailer. Michelin PS2 tyres.
Hi all,
After a short spell away from bmws i finally decided that i wanted yet another.. So i purchased an 01 M5 in Silver.. Lovely you might say, but and yes there is a BIG BUT.. The car has had a NEW VANOS installed by a bmw dealership.. GREAT you might say, BUT the ecu is still showing a problem with the vanos.. Now bmw have reprogramed the ecu with all original data and guess what ? Still it showes the problem..ahhhhh.... Now all is not lost because i can still drive the beast but i have to unplug the two connectors from the air intake hoses.. My quest is how can i solve this problem? Has anyone ever had this problem?all replies would be greatly be appreciated ....
You can have good vanos and bad cam sensors and this will give you the issue you are experiencing. If they did not replace the sensors when they replaced the vanos I would bet this is your issue. My mechanic actually showed me on my car when we replaced the vanos how this was possible.
Replacing the cam sensors is a real pain and expensive. The sensors are not expensive, the labor is.
Mark
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MY2001 Imola Red
Lux. Black Interior
Painted Calipers,
AC Schzitner Type III Two Piece 18 chrome wheels, Stage II HID's Low Beams and Foglights, Supersprint X-pipe (removed).
Autowerke CAI
Powerchip Software Upgrade
Stage I upgrade MB Quarts Speakers from Bavarian Soundwerks (our sponsor here)
Tubi Catback Exhaust
361RWHP
425HP and growing!
You can have good vanos and bad cam sensors and this will give you the issue you are experiencing. If they did not replace the sensors when they replaced the vanos I would bet this is your issue. My mechanic actually showed me on my car when we replaced the vanos how this was possible.
Replacing the cam sensors is a real pain and expensive. The sensors are not expensive, the labor is.
Mark
You are right, it could be a cam sensor, or possibly a crankshaft sensor.
I donŽt think it is that difficult to replace a cam sensor. Someone posted a DIY description that didnŽt look too difficult. I seem to remember a recommendation to replace the exhaust cam sensors from below the car, and the intake cam sensors from the top.
David
__________________
2000 M5 LeMans blue/Silverstone sport interior, double glass windows, all options except alcantara ceiling and trailer. Michelin PS2 tyres.
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