EGS52 Can this unit be replaced Without programming?
Thread Starter
Newbie
Joined: Apr 2012
Posts: 2
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From: UK
2000 C240 Sport auto
EGS52 Can this unit be replaced Without programming?
for C240 Sport Auto 1998-2000 4tronic.
No tip change; car drives in 1st/2nd and reverse no 3rd and does not change down. Replaced 13 pin adaptor socket; ATF oil is MB and level is correct. Replaced Brake switch. Next - Conductor plate clean / replacement. BUT maybe TCU?? So could I buy a second user EGS52 and use it without programming. Comments please. No codes coming out of the diags for transmission. BUT I am getting data from the ECU ... wheel speeds/ engine data OK. Your help please!
No tip change; car drives in 1st/2nd and reverse no 3rd and does not change down. Replaced 13 pin adaptor socket; ATF oil is MB and level is correct. Replaced Brake switch. Next - Conductor plate clean / replacement. BUT maybe TCU?? So could I buy a second user EGS52 and use it without programming. Comments please. No codes coming out of the diags for transmission. BUT I am getting data from the ECU ... wheel speeds/ engine data OK. Your help please!
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Joined: May 2017
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C320
No you can't replace the tcm without coding. Before trying to replace it I would find someone with a STAR or icarsoft diagnostic tool and try and communicate with the tcm. When the 13 pin plug leaks, often times the ATF wicks it's way all the way to the TCM. In that case it'll need to be removed from underneath the passenger side carpet and cleaned with isopropyl alcohol. After that you'll need to clear any codes stored on the tcm. The first thing I would do is pull the passenger side carped and check the wiring going into the tcm for atf oil.
Thread Starter
Newbie
Joined: Apr 2012
Posts: 2
Likes: 0
From: UK
2000 C240 Sport auto
Question over TCM (EGS)
No you can't replace the tcm without coding. Before trying to replace it I would find someone with a STAR or icarsoft diagnostic tool and try and communicate with the tcm. When the 13 pin plug leaks, often times the ATF wicks it's way all the way to the TCM. In that case it'll need to be removed from underneath the passenger side carpet and cleaned with isopropyl alcohol. After that you'll need to clear any codes stored on the tcm. The first thing I would do is pull the passenger side carped and check the wiring going into the tcm for atf oil.
VIN WDB2020262F905934
MB no: 20224400711 VDO
HARDWARE STATUS /33/99
SOFTWARE STATUS /34/98
DIAG IDENTITY 0/20
1. Does the EGS51 require reprogramming if indeed I buy a replacement.
2. Does anyone have any idea if the reversing lamp is in the same circuit that could affect the TCU?
3. Does anyone know where Terminal 15 is?
4. Where can I buy an OEM Conductor plate for this vehicle in the UK !
Many thanks in anticipation.
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It sounds like something we could take care of, give us a call! +1-888-875-2958
