Hello -
I’ve successfully performed an SMG pump relocation in the past on the M3 I recently parted ways with, so figured I’d tackle another relocation on the Imola since I had a few days this summer were the SMG COG light illuminated and went into limp mode. I replaced the GPS a few months ago when I lost the ability to shift gears after some aggressive driving.
I went through the old pump removal and installed a brand new SMG pump with MLR’s expanded expansion tank. Everything wired up as expected and I started performing the actuator bleed with the pump horizontal and the CSL reservoir hanging above the pump.
I got through ~10 minutes of the 16 minute bleed process and was met with an error. No problem, I’ll just bleed again. The process errored again and I kept getting the following:
“Not possible to reach end position (5th gear)”
This would occur with ~7 minutes left on the countdown at the following stage:
“selector angle (WW) airing” right after “Bleeding the gearbox actuator! pressure increase for shift path (gear) airing”
Mind you, previous “selector angle (WW) airing” stages were fine and didn’t error out.
I tried to perform the actuator bleed at least 6-7 times and was met with failure approximately the same stage as above.
The car powers on, the engine bounces at idle as the SMG gearbox flickers between 6th and 2nd, or if moved to Neutral it bounces between 6th and N. I tried to manually shift to each gear in INPA with failure except 6th gear.
Everything is torqued and all my wiring is fine (I think). You can hear the pump actuator working normally when you open the driver’s side door or if you out the keg in the ignition. Pressure is able to build up to 70 (85 during the test with automatic shutoff).
sapote George Hill oceansize 0-60motorsports any thoughts? Or anyone else with some ideas?
Would the GPS die after a few months? It was a brand new replacement.
David
I’ve successfully performed an SMG pump relocation in the past on the M3 I recently parted ways with, so figured I’d tackle another relocation on the Imola since I had a few days this summer were the SMG COG light illuminated and went into limp mode. I replaced the GPS a few months ago when I lost the ability to shift gears after some aggressive driving.
I went through the old pump removal and installed a brand new SMG pump with MLR’s expanded expansion tank. Everything wired up as expected and I started performing the actuator bleed with the pump horizontal and the CSL reservoir hanging above the pump.
I got through ~10 minutes of the 16 minute bleed process and was met with an error. No problem, I’ll just bleed again. The process errored again and I kept getting the following:
“Not possible to reach end position (5th gear)”
This would occur with ~7 minutes left on the countdown at the following stage:
“selector angle (WW) airing” right after “Bleeding the gearbox actuator! pressure increase for shift path (gear) airing”
Mind you, previous “selector angle (WW) airing” stages were fine and didn’t error out.
I tried to perform the actuator bleed at least 6-7 times and was met with failure approximately the same stage as above.
The car powers on, the engine bounces at idle as the SMG gearbox flickers between 6th and 2nd, or if moved to Neutral it bounces between 6th and N. I tried to manually shift to each gear in INPA with failure except 6th gear.
Everything is torqued and all my wiring is fine (I think). You can hear the pump actuator working normally when you open the driver’s side door or if you out the keg in the ignition. Pressure is able to build up to 70 (85 during the test with automatic shutoff).
sapote George Hill oceansize 0-60motorsports any thoughts? Or anyone else with some ideas?
Would the GPS die after a few months? It was a brand new replacement.
David
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