Rooftop codes

djnewage · 04-10-2023, 06:35 PM

i live in wisconsin and it just started getting nice out so i tried to put my rooftop down for the first time this year and the rooftop goes up slowly and stops with the window above the roof and the trunk open. im not getting a red light on the switch to put it up but when i press the the button to put up the roof up i get a red roof indicator on the dashboard i am able to put the top back down no problem. my buddy ran a scanner and came up with these codes below. anyone got any guess how much this might run me to get fixed at a bmw dealer? also i did notice quite a bit of water in the battery area like 2 inches and cleaned it out and checked to see if it was the hydralic pump that leaked but it has all of the fluid in there maybe this might be a related issue as to why the top wont go down? here are the codes below.

roadracer516 · 04-11-2023, 09:09 AM

Quote:

Originally Posted by djnewage

i live in wisconsin and it just started getting nice out so i tried to put my rooftop down for the first time this year and the rooftop goes up slowly and stops with the window above the roof and the trunk open. im not getting a red light on the switch to put it up but when i press the the button to put up the roof up i get a red roof indicator on the dashboard i am able to put the top back down no problem. my buddy ran a scanner and came up with these codes below. anyone got any guess how much this might run me to get fixed at a bmw dealer? also i did notice quite a bit of water in the battery area like 2 inches and cleaned it out and checked to see if it was the hydralic pump that leaked but it has all of the fluid in there maybe this might be a related issue as to why the top wont go down? here are the codes below.

MAN, that is a real bummer, sorry you are dealing with that and first top down day to boot

I am too new to my Z4 as well, so cannot help you there. That said, search the forum, there is quite a bit of info on rooftop issues. GOOD LUCK

djnewage · 04-11-2023, 10:03 AM

Yeah it sucks but welcome to the z4 family! and i have been searching the forums and have found some similar threads

bigendbob · 04-11-2023, 01:12 PM

I put reply on other forum.

djnewage · 04-11-2023, 08:40 PM

update. so i took the battery out and drained all of the water out of the trunk and rescanned the codes. there is only one error now which i will post the screen shot of. the roof is still not working properly and i have provided a video link as well. any ideas of what could be wrong?

MRCW · 04-12-2023, 05:06 AM

Try replacing the two salmon relays

surfwooder · 06-08-2023, 03:57 PM

The photo of the distribution of power to both salmon relays, Those relays control the current direction of the motors, which will drive the top either up or down. If you can connect your volt meter to the output of the red wires to the salmon relay if no voltage exists replace that relay and re-test. Open the panel next to the hydraulic panel to the right. That is where the Convertible top module lives. Check for water in the well, or moisture damage on any of the plugs. That module provides the voltage to actuate either salmon relay, to change direction of the top movement. On the photo of the Battery power distribution strip, it appears a black wire is pulled out. Each wire should be connected through the terminal, That wire is probably carrying the full battery voltage and current to a salmon relay driving the motor to drive the top up or down. Imbedded in the terminal is a 50 amp fuse to protect the motor.

surfwooder · 06-08-2023, 04:08 PM

The BMW 328IC share the same CTM, and there is a Bentley Manual for the 2008 328IC it shows the direct pin out in and output for that module.

bigendbob · 06-10-2023, 03:16 PM

Might be some use:
https://e89.zpost.com/forums/attachm...1&d=1686428077

04-10-2023, 06:35 PM	#1
djnewage New Member 0 Rep 10 Posts Drives: none Join Date: Mar 2020 Location: milwaukee iTrader: (0)	Rooftop codes i live in wisconsin and it just started getting nice out so i tried to put my rooftop down for the first time this year and the rooftop goes up slowly and stops with the window above the roof and the trunk open. im not getting a red light on the switch to put it up but when i press the the button to put up the roof up i get a red roof indicator on the dashboard i am able to put the top back down no problem. my buddy ran a scanner and came up with these codes below. anyone got any guess how much this might run me to get fixed at a bmw dealer? also i did notice quite a bit of water in the battery area like 2 inches and cleaned it out and checked to see if it was the hydralic pump that leaked but it has all of the fluid in there maybe this might be a related issue as to why the top wont go down? here are the codes below. Attached Images
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04-11-2023, 10:03 AM	#3
djnewage New Member 0 Rep 10 Posts Drives: none Join Date: Mar 2020 Location: milwaukee iTrader: (0)	Yeah it sucks but welcome to the z4 family! and i have been searching the forums and have found some similar threads
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04-11-2023, 01:12 PM	#4
bigendbob Second Lieutenant 50 Rep 297 Posts Drives: z4 23i Orion Silver Join Date: Jun 2012 Location: west midlands iTrader: (0)	I put reply on other forum.
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04-11-2023, 08:40 PM	#5
djnewage New Member 0 Rep 10 Posts Drives: none Join Date: Mar 2020 Location: milwaukee iTrader: (0)	update. so i took the battery out and drained all of the water out of the trunk and rescanned the codes. there is only one error now which i will post the screen shot of. the roof is still not working properly and i have provided a video link as well. any ideas of what could be wrong? Attached Images
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04-12-2023, 05:06 AM	#6
MRCW Private First Class 37 Rep 121 Posts Drives: Z4 35i X1 35i Join Date: Oct 2022 Location: Florida iTrader: (0)	Try replacing the two salmon relays
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06-08-2023, 03:57 PM	#7
surfwooder Private 3 Rep 63 Posts Drives: BMW 2009 Z4 Join Date: Jun 2018 Location: Bow, New Hampshire, USA iTrader: (0) Garage List 2008 BMW 328IC [0.00] 2009 Z4 [0.00]	The photo of the distribution of power to both salmon relays, Those relays control the current direction of the motors, which will drive the top either up or down. If you can connect your volt meter to the output of the red wires to the salmon relay if no voltage exists replace that relay and re-test. Open the panel next to the hydraulic panel to the right. That is where the Convertible top module lives. Check for water in the well, or moisture damage on any of the plugs. That module provides the voltage to actuate either salmon relay, to change direction of the top movement. On the photo of the Battery power distribution strip, it appears a black wire is pulled out. Each wire should be connected through the terminal, That wire is probably carrying the full battery voltage and current to a salmon relay driving the motor to drive the top up or down. Imbedded in the terminal is a 50 amp fuse to protect the motor. __________________ Proud owner of: 2009 BMW Z4 3.0,2008 BMW 328IC, and now a 2018 Ram 1500 Limited P/U truck Last edited by surfwooder; 06-08-2023 at 04:04 PM.. Reason: my computer saved the post before I finished. You may want to get a Bentley Manual for 2008 328ic. The E93 has the same top
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06-08-2023, 04:08 PM	#8
surfwooder Private 3 Rep 63 Posts Drives: BMW 2009 Z4 Join Date: Jun 2018 Location: Bow, New Hampshire, USA iTrader: (0) Garage List 2008 BMW 328IC [0.00] 2009 Z4 [0.00]	The BMW 328IC share the same CTM, and there is a Bentley Manual for the 2008 328IC it shows the direct pin out in and output for that module. __________________ Proud owner of: 2009 BMW Z4 3.0,2008 BMW 328IC, and now a 2018 Ram 1500 Limited P/U truck
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06-10-2023, 03:16 PM	#9
bigendbob Second Lieutenant 50 Rep 297 Posts Drives: z4 23i Orion Silver Join Date: Jun 2012 Location: west midlands iTrader: (0)	Might be some use: https://e89.zpost.com/forums/attachm...1&d=1686428077 Attached Images
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