SMG Error 59: Help needed!!!

[eacmen]

Hmmm... I would figure since it's high pressure, crack the lines would have fluid spraying everywhere...

If you crack them too much, yes. Quarter turn should be sufficient.

[x Spades x]

Sort of correct. Cracked em where the stock lines meet the relocation lines.

Hmmm... I would figure since it's high pressure, crack the lines would have fluid spraying everywhere...

[oceansize]

Sort of correct. Cracked em where the stock lines meet the relocation lines.

Ahhh, just saw your other post.

[eacmen]

Three of the lines go to the actuator. He didn't crack them at the actuator, he cracked them at the pump.

Sort of correct. Cracked em where the stock lines meet the relocation lines.

[oceansize]

Oh wow, that DOES sound frustrating. Am I able to get to the actuator points without dropping everything?

Three of the lines go to the actuator. He didn't crack them at the actuator, he cracked them at the pump.

[eacmen]

Oh wow, that DOES sound frustrating. Am I able to get to the actuator points without dropping everything?

My pump is relocated so I cracked the fittings where the relocation lines would meet the stock pump location. Just enough so fluid would seep out. They are flared fittings so didn't take much.

Ran the bleed procedure twice. Made a mess. Tightened them back up and it adapted the next attempt. I also lightly tapped the actuator hard lines while the bleed was running.

[x Spades x]

When I did my SMG relocation I got into a situation where no matter how many times I ran the bleed procedure there would still be small air bubbles in the reservoir during bleed. Eventually this failed on track after 4 weekends and I couldnt even run the bleed procedure. This turned out to be failing seals internal to the pump failing (this was an MLR rebuilt unit).

When I swapped in our spare SMG unit I was having trouble bleeding the system, the bleed procedure would succeed but the adaptation failed. This turned out to be air locked in the actuator. I had to make sure the reservoir was up high by hanging it from the hood, then ran the bleed procedure a few times with the hood raised up then with the trunk raised up. Eventually cracking the hard line fittings going to the actuator during the bleed was the easiest solution. It was very frustrating.

Oh wow, that DOES sound frustrating. Am I able to get to the actuator points without dropping everything?

[eacmen]

I've ran this bleed procedure about 40 times, over the past two days. Yes, pump is reaching full pressure (85 bars) with a slow decline afterward. Pump also passes the other pressurized test within INPA.

When I did my SMG relocation I got into a situation where no matter how many times I ran the bleed procedure there would still be small air bubbles in the reservoir during bleed. Eventually this failed on track after 4 weekends and I couldnt even run the bleed procedure. This turned out to be failing seals internal to the pump failing (this was an MLR rebuilt unit).

When I swapped in our spare SMG unit I was having trouble bleeding the system, the bleed procedure would succeed but the adaptation failed. This turned out to be air locked in the actuator. I had to make sure the reservoir was up high by hanging it from the hood, then ran the bleed procedure a few times with the hood raised up then with the trunk raised up. Eventually cracking the hard line fittings going to the actuator during the bleed was the easiest solution. It was very frustrating.

[x Spades x]

I'm wondering if one or more of the solenoids have kicked the bucket. OP, test the resistance of each solenoid by attaching an ohm meter to the two prongs. Resistance should be very low. Look at the diagram here, (B) is the clutch slave cylinder solenoid.

From Burkhart's SMG wiki:

Proportional directional control valve (clutch (B); selector angle (C))
The two proportional directional control valves in the hydraulic unit supply the clutch slave cylinder and the selector angle cylinder with hydraulic oil.

New info...

So I was bleeding all yesterday and tried to put the car into each gear through INPA. I unplugged the Slave cylinder and now Gears 1-4 and 6 are fine. Gears 5 and Reverse slip crazy... to the point where they never go into gear... you just hear the slipping noise then get the slipping error (53 i believe).

[oceansize]

I'm wondering if one or more of the solenoids have kicked the bucket. OP, test the resistance of each solenoid by attaching an ohm meter to the two prongs. Resistance should be very low. Look at the diagram here, (B) is the clutch slave cylinder solenoid.

From Burkhart's SMG wiki:

Proportional directional control valve (clutch (B); selector angle (C))
The two proportional directional control valves in the hydraulic unit supply the clutch slave cylinder and the selector angle cylinder with hydraulic oil.

[eacmen]

Maybe an ECU or wiring fault?

[x Spades x]

Bleeding the SMG system after its fully open is a PITA. Does INPA data logging show the SMG hydraulic unit reach target pressure?

You may need to crack the hydraulic fittings on the actuator while running the bleed procedure.

Make sure to run the bleed procedures at least 5 times before trying to adapt.

I've ran this bleed procedure about 40 times, over the past two days. Yes, pump is reaching full pressure (85 bars) with a slow decline afterward. Pump also passes the other pressurized test within INPA.

[eacmen]

Bleeding the SMG system after its fully open is a PITA. Does INPA data logging show the SMG hydraulic unit reach target pressure?

You may need to crack the hydraulic fittings on the actuator while running the bleed procedure.

Make sure to run the bleed procedures at least 5 times before trying to adapt.

[x Spades x]

Have you replaced the clutch slave with a new one? Anecdotally, it seems the clutch slave is prone to failure upon removal now that our cars are up in mileage and years. Mine failed at 100k, working fine at removal time, re-install then error 59 and failed bleeds. Bought new one, installed, problem resolved. This has been the same for a few others here but x Spades x has seemingly hit an instance where something else has gone wrong. The problem is there isn't a sure fire way to know the clutch slave is bad.

Hey Fellas.

I'm circling back on this, as it was frustrating the SHIT out of me.

I dropped the Trans again and totally did the clutch job over again. I triple checked the pilot bearing, reinstalled the original flywheel (looks good), new clutch (triple checked the direction), and reset the pressure plate.

I also bought a brand new pivot spring, clutch fork, oem plastic pivot.

I then bought another used (and working gear position sensor, brand new slave cylinder, and used (but working) clutch actuator (where the rod is). I installed the slave cylinder and actuator while granny was off the car.

I also got used smg lines from Mparts and installed half while granny was out and connected lines to the pump.
I also switched out the pump from a working car.

Aaaaall of that to say... I have the SAME error 59, like I didn't do ANY of the above, 🤦🏾.

Ive reinstalled the driveshaft, all exhaust piping, and connect wiring.

Now the transmission is stuck in neutral. INPA reads the gear selector moving into Reverse (for example), but display is blinking "N" and confirmed in INPA.

Car still fails the first actuator test... I'm lost.

[oceansize]

since i had the tranny off, i removed the clutch assembly to inspect it for wear. All looked good so it went back in. I reset the self adjusting pressure plate prior to assembly.

Have you replaced the clutch slave with a new one? Anecdotally, it seems the clutch slave is prone to failure upon removal now that our cars are up in mileage and years. Mine failed at 100k, working fine at removal time, re-install then error 59 and failed bleeds. Bought new one, installed, problem resolved. This has been the same for a few others here but x Spades x has seemingly hit an instance where something else has gone wrong. The problem is there isn't a sure fire way to know the clutch slave is bad.