What is the DM-TL module, mine is broke? - BMW M5 Forum and M6 Forums

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Old 14th May 2007, 02:57   #1
the-dragonfly
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What is the DM-TL module, mine is broke?

Using peake code reader on my 2002 M5, and cannot figure out what this module is and how it could be leaking.

Any help would be appreciated.
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Old 14th May 2007, 03:34   #2
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Fuel detection leak module. Could it be you refueled with the ignition on? That could trigger the fault.
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Old 15th May 2007, 02:59   #3
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I reset the codes, and they come back without any refueling inbetween. Maybe I will call BMA and inquire if there is a sensor or module that could be the source of the issue. Key is out of the ignition when I refuel.

Finally an answer thanks!
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Old 16th May 2007, 02:53   #4
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Do you remember the fault code #? The DMTL pump/module may have crapped out. If so, change it soon. I dont know if it will has any effect to the rest of the fuel system.
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Old 16th May 2007, 04:41   #5
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Peake tools gave three codes for the table #18

2002 M5 with 90k on it. So far I have done sparkplugs, cabin filters, Air filter, Engine Oil and filter, Tranny fluid and Diff fluid. Next will most likely be to clean the MAF, change the valve cover gaskets, and fuel filter.

Peake Tool said
18,
Ab Secondary Air system- Valve sticking
7F DM-TL Module
28 After Cat O2 Heater Control cyl#5-8
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Old 13th July 2014, 16:31   #6
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Code the same as mine DM-TL Module

I just got the same code (7F= DM-TL Module) on the peake tool. I've also had idle issues. seems to be lower idle and very lumpy. Other codes are AA= secondary air system flow too low & catalyst system efficiency Bank 1. I've had these codes for a whileThis code keeps coming back I dont refuel with the key or engine running. Is their any other things I should be looking at or should I just replace the module? Any help would be appreciated.
Dave
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Old 13th July 2014, 18:46   #7
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Quote:
Originally Posted by hobiedave02 View Post
I just got the same code (7F= DM-TL Module) on the peake tool. I've also had idle issues. seems to be lower idle and very lumpy. Other codes are AA= secondary air system flow too low & catalyst system efficiency Bank 1. I've had these codes for a whileThis code keeps coming back I dont refuel with the key or engine running. Is their any other things I should be looking at or should I just replace the module? Any help would be appreciated.
Dave
I doubt your idle problems are caused by the DM-TL. The SAP and DM-TL are only used for emissions control and do not affect the engine's running conditions. Your idle issues might be caused by O2 sensors on their way out.
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