M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

EIS Issue

Old May 29, 2024 | 08:28 AM
  #1  
andrewpaul's Avatar
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From: Wellington NZ
ML320 CDI W164 2006
EIS Issue

Will a faulty EIS still light up the dash and crank but the Engine won't start?

W164 ML320CDI 2006
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Old May 29, 2024 | 01:58 PM
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1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
EIS

Originally Posted by andrewpaul
Will a faulty EIS still light up the dash and crank but the Engine won't start?

W164 ML320CDI 2006
YES. I would start out with a good code reader to read the faults.
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Old May 29, 2024 | 08:41 PM
  #3  
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From: Wellington NZ
ML320 CDI W164 2006
Originally Posted by vesiadog
YES. I would start out with a good code reader to read the faults.
No codes with the reader that I have - Autel MD808 Pro which is decently accurate.
Am getting a better reader later today.

Would you be able to help with a list of what all needs to happen for a successful start?

Currently :
- Dash Lights All On
- Engine Cranks
- Tank Pump can be heard and I see Diesel when I remove the outlet Pipe from the Fuel Filter
- Have replaced the Starter Relay and also see 12.1 volts at location 87 as per the scan tool
- Have replaced batteries in the Key
Just received a Crank Position sensor but am pretty sure that I saw RPM Data while cranking the engine.
As per my diagnosis list I only have the EIS which I am comfortable taking apart and soldering but all online EIS failures seem to have no or limited dash lights and no crank.

Would appreciate any help.
Cheers,
Andrew



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