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Mercedes w211 radio head unit is not working .live and earth wires to unit are fine .will i need to replace the head unit.

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SOURCE: NG Pajero radio cassette wiring

what colours are the eart and negative wires on aclarion pu/2294aradio please

Posted on May 16, 2008

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SOURCE: 1979 Mercedes Benz 300D- Turn signals, windows, radio...quit

Barrel fuses used to be made of aluminum and corrode on the copper contacts. Pull fuses and replace. 10-15 dollars now will help get rid of electrical gremlins.

Posted on Jul 28, 2009

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SOURCE: my amp is not working! i have a live from battery

Do you have the remote turn-on lead hooked up?

There should be 3 wires on the power side of the amplifier.

Ground - to the car chassis
Power - to the car battery
Remote - to the remote turn on lead from the head unit. (this emits a 12V signal to a relay inside the amplifier for it to turn on when the radio does)

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Posted on Sep 05, 2009

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SOURCE: oil level gauge not working. replaced sender unit.

check if sender fit your car, if good, maybe the problem is oil pump , dirty oil filter, poor quality engine oil

Posted on Sep 11, 2009

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SOURCE: how to wire a digital room thermostat

The switched live will be the Live on the original....Live being "Hot" that's the wire you want to switch on and off

Posted on Oct 25, 2009

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There should be 2 blocks that come from the car. One for power and one for speakers. The power is red, the earth is black, the yellow is usually a perminantley live wire, the orange is an illumination wire and the blue is a remote wire (which recognises when the key is turned) the wires from your radio needs to be lined up with the correct corresponding wires. If they are connected correctly change the fuse at the back of the radio head unit and the fuse for the car radio. If you have done all the steps above and the radio still doesn't work then you can use a voltmeter to test if power is coming down the wires. If there is and the radio is still not working then you have a faulty head unit. If it has been incorrectly fitted previously you may have blow the amp inside the head unit, an easy way to tell if this has happened is to smell the back of the radio, it will stink so you will know its burnt out

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Cant find fuel filter on mercedes w211

The fuel filter is part of the fuel sending units inside the fuel tank. There is no external fuel filter on the W211. The fuel sending units are located under the rear seat cushion behind the access panels.

Feb 18, 2012 | 2002 Mercedes-Benz E-Class

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Reset srs light on dash sprinter

Most cars and trucks can be re-set by disconnecting the negative batery cable for about 10 minutes...this should auto re-set to factory specs...if the light comes back on, you have wired into the wrong system. Hope this helps.

Jan 31, 2012 | Mercedes-Benz Sprinter Cars & Trucks

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How to wire sreaker system

this is the same as a home speaker system, if installing an amp and sub you need to make sure you have a pre-out on your cd/tape/radio head unit. this will look like a red and white hole usally with l and r on it,
you will need to run a male phono to phono lead from the head unit to the amp, You will also need to run a fused live 12v from your battery to the amp live input (red wire) and a remote (usally blue) from your head unit to the amp (make sure you run the live ond remote on opisite sides of the car to the phonos as they can interfere with each other).
you also need to run an earth/ground to your amp, this must not be to long, i normaly just un srew a screw in the boot and connect it to that.
once this is done you can wire up your sub to the amp making sure to match - to - and + to plus.
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Jan 02, 2011 | Car Audio & Video

2 Answers

Cant find hand brake wire for clarion dvd head unit model no. vrx486vd well i cant get video to work earthed the grass green wire and nothing please help!!

i have the same model its the green wire next to the earth wire bottom row make sure u earth it otherwise the unit can be frustrating at times!!!!

Sep 06, 2010 | Clarion VRX755VD Car DVD Player

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How do I remove and replace the radio in a 1993 Mercedes Benz 300SE? I want to replace the radio unit with a unit containing CD player.

First thing is to understand you will most likely have to run all new speaker wire as the head unit in your car has everything external to the head unit (power amplifier, fader). The plastic around shifter pulls up off, then remove wood surround. Remove ashtray, pull face off head unit usually by sticking fingers in cassette area and pull. There will be plastic tabs on the bottom of unit push in and pull out on head unit, pull slowly so you can inspect wires for placement. Again rerunning speaker wire should be done to preclude external amps and fader switch and power antenna if yours still works.

Jun 04, 2010 | 1993 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

What color is what for the radio wires i have like a atapter

your car should have an ISO connector, all newer radios also have ISO connectors, one for the 8 speaker wires and one for the power block, they cannot be connected wrong.
If on the other hand some muppet has chopped off the connectors instead of using a proper converter connector then you should reinstall new ISO connectors.
You will need:
A 12v test light or a multimeter set to 120vdc
some masking tape to make labels and a ped to mark the labels.
A quick test to establish the correct wires is.
using your 12volt test lamp or multi meter, find a wire that is live when ignition is off, this is your +30 live, now switch on ignition and find one that is live, this is your+15 live, now switch on the lights, is there another live? this is your lights or dimmer wire. with the lights and ignition on connect the live lide of your tester to the +30 wire and find one that is earth, (you should be running outof wires by now anyway, this si your earth or ground wire.
The speaker wires will probably be seperate and if you have a bunch of 8 wires, that's them.
you will find there is a prime color and another with the same color but with a trace, so make into pairs, ie, red and red/white, green and green/white etc.
using a 1,5v AA battery touch each pair very briefly in turn, the corrisponding speaker will 'pop', mark up front left etc.
There ya go, all sorted.

Mar 07, 2009 | 1987 Mercedes-Benz Mercedes Benz 190 Class

2 Answers

NG Pajero radio cassette wiring

the green/white wire is the earth - the earth to the chassis gave no resistance when tested with the multimeter to the car chassis. So it was a pretty good bet that the green/white wire was the earth as suspected. The radio cassette works a treat. Yipee!

Apr 18, 2008 | Car Audio & Video

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