12V / battery line in engine compartment??????????
Thread Starter
Super Member
Joined: Mar 2006
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From: Bellevue, WA
.... nothing to brag about, it is a previous model....
12V / battery line in engine compartment??????????
Can anyone show me where I can tap a 12V line in the engine compartment, that is directly feed from battery w/out going through fuse/ resistor or ECU?
(E320)
thanks,
(E320)
thanks,
Last edited by no_clue; Mar 23, 2007 at 04:18 PM.
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From: Seattle WA
99 E320
hey, check the engine compartment. i believe your car and mine (for one)
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
Member
Joined: Jan 2007
Posts: 181
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From: Lawn Guyland,NY
'07 E350W4
hey, check the engine compartment. i believe your car and mine (for one)
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
As stated, I thought there are terminals onder the hood but, just looked in the owners manual and it doesn't say BOO about this, only in the trunk. In fact, that's where they refer you when jumping the battery(or someone elses)
Thread Starter
Super Member
Joined: Mar 2006
Posts: 606
Likes: 4
From: Bellevue, WA
.... nothing to brag about, it is a previous model....
hey, check the engine compartment. i believe your car and mine (for one)
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
has terminal points right above the left wheel well...close to the firewall.
the purpose was to allow booster cables w/o having to route under the
rear seat. (presuming your battery is still under the seat).
plastic cap swings open and should have a big "+". ground would be clean and effective chassis ground.
for your curiosity, I am installing a relay to HID ballast.
I don't want to have the ECU program to "xenon present", just in case, I want my regular bulb back on.
Last edited by no_clue; Mar 23, 2007 at 04:50 PM.
Thread Starter
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Joined: Mar 2006
Posts: 606
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From: Bellevue, WA
.... nothing to brag about, it is a previous model....
The HID kit I installed works perfectly when engine is NOT on.
When I started the engine, both flickers like crazy!!!!!
I suspect the ECU is NOT providing enough current, hence I try to tap the 12V directly to the ballast.
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Its big and Grey!
you need to go to the dealer and acitivate "Xenon present" in their computer.
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Thread Starter
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.... nothing to brag about, it is a previous model....
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MBWorld Fanatic!
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From: Seattle WA
99 E320
after they moved the battery from under-seat.....back into the trunk. so
you're right. no more under the hood access. sorry for the misdirect.
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Its big and Grey!
MBWorld Fanatic!
Joined: Jan 2004
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From: Seattle WA
99 E320
yeah...i'm getting mixed up and got redirected towards jump starting the car.
so the rear battery should *only* be used for jumpstarting (whereas on my
99 E320, the engine compartment terminal can be used to jump). N_C's
query was simply to tap for power so that's different...and I s'pose, can
consider that front battery.
btw...what does front/smaller battery handle? misc electronics, no doubt?
so the rear battery should *only* be used for jumpstarting (whereas on my
99 E320, the engine compartment terminal can be used to jump). N_C's
query was simply to tap for power so that's different...and I s'pose, can
consider that front battery.
btw...what does front/smaller battery handle? misc electronics, no doubt?
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From: Longmont, CO
04 E320 4 Matic, 95 Audi S6, 99 Carrera 4 Cabrio, 12 Fiat 500 Sport, 00 BMW R1200C 10, BMW R1200R
Hope this helps a bit more.
Steve
Thread Starter
Super Member
Joined: Mar 2006
Posts: 606
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From: Bellevue, WA
.... nothing to brag about, it is a previous model....
yeah...i'm getting mixed up and got redirected towards jump starting the car.
so the rear battery should *only* be used for jumpstarting (whereas on my
99 E320, the engine compartment terminal can be used to jump). N_C's
query was simply to tap for power so that's different...and I s'pose, can
consider that front battery.
btw...what does front/smaller battery handle? misc electronics, no doubt?
so the rear battery should *only* be used for jumpstarting (whereas on my
99 E320, the engine compartment terminal can be used to jump). N_C's
query was simply to tap for power so that's different...and I s'pose, can
consider that front battery.
btw...what does front/smaller battery handle? misc electronics, no doubt?
Also I still don't know where the heck is the 12V terminal in the engine compartment!!!!!
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From: Seattle WA
99 E320
i dont think there is one, R. I haven't seen any reference to a POS terminal
under the hood for jump starting in the W211 where the battery is in the trunk.
i searched through quite a number of PDF manuals and it is absent any mention
of this ....versus, say in the W210 manuals with battery under the rear seat.
here are two examples.....
under the hood for jump starting in the W211 where the battery is in the trunk.
i searched through quite a number of PDF manuals and it is absent any mention
of this ....versus, say in the W210 manuals with battery under the rear seat.
here are two examples.....
Last edited by raymond g-; Mar 27, 2007 at 12:54 AM.
Thread Starter
Super Member
Joined: Mar 2006
Posts: 606
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From: Bellevue, WA
.... nothing to brag about, it is a previous model....
Newbie
Joined: Sep 2013
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Mercedes E320 2004
For my car, i used 12 volts from auxiliary battery in engine for feed relay for my HID.Not Problem. This Red wire came from trunk battery for to be charged.
This front battery is for brake pump.
Not problem. In The regular H7 socket i used regulator canbus. Ebay $ 10.00. Just for avoid warning light in dash.
This front battery is for brake pump.
Not problem. In The regular H7 socket i used regulator canbus. Ebay $ 10.00. Just for avoid warning light in dash.
I don't care how old this thread is, it solved my problem of finding a 12v constant under the hood! Thanks for the help, 3 years or 30 years!
