Speed Pulse W203

[GARYB]

HI ALL (NEW TO GROUP)

HAVE A 220 CDI W203

AM TAKING OUT THE AUDIO 10 AND FITTING A TRAFFIC PRO DOES ANY ONE KNOW THE LOCATION OF THE REVERSING AND SPEED PULSE CABLES ARE LOCATED .
ANY THOUGHTS ON LOCATING THE antenna INFACT ANY HELP ON THIS TOPIC WOULD BE VERY MUCH WELCOMMED.

REGARDS GARYB :confused:

[steve_bcs]

Hi Garyb & welcome.

Unfortunately there is no speed pulse at the head unit on a w203. unlike earlier cars.

However, A speed pulse signal can be found at plug 24, pin 3. This is located under the bonnet on the under side of the fuse box near the A pillar.

I havent done this personally but this is info received from contributors to this forum who have fitted comand from a G wagon which needs a conventional speed pulse.

I am not sure where the reverse signal wire is , but most people dont bother as its not usual to travel far in reverse and as soon as you go forward the GPS & speed pulse should figure out which way you are heading.

The gps antenna on a C class is usually mounted between the dash and the instrument cluster. This means removing the instrument cluster using special tools available from your delaer for a few pounds. I can get you the part number if you like. It's easy to remove & just clicks back into place afterwards.

Alternatively you could mount it on the dash, say in the left corner near the tax disc, or with an extension cable mount it under the rear parcel shelf . It must face upwards to the sky & not be obscured by metal. It can "see" thru plastic & foam , carpet etc.

Any reason in particular why you went for the becker? Ever thought about retrofitting comand ? its easy but dealers will tell you it cant be done.

Hope this helps.

[GARYB]

Hi Garyb & welcome.

Unfortunately there is no speed pulse at the head unit on a w203. unlike earlier cars.

However, A speed pulse signal can be found at plug 24, pin 3. This is located under the bonnet on the under side of the fuse box near the A pillar.

I havent done this personally but this is info received from contributors to this forum who have fitted comand from a G wagon which needs a conventional speed pulse.

I am not sure where the reverse signal wire is , but most people dont bother as its not usual to travel far in reverse and as soon as you go forward the GPS & speed pulse should figure out which way you are heading.

The gps antenna on a C class is usually mounted between the dash and the instrument cluster. This means removing the instrument cluster using special tools available from your delaer for a few pounds. I can get you the part number if you like. It's easy to remove & just clicks back into place afterwards.

Alternatively you could mount it on the dash, say in the left corner near the tax disc, or with an extension cable mount it under the rear parcel shelf . It must face upwards to the sky & not be obscured by metal. It can "see" thru plastic & foam , carpet etc.

Any reason in particular why you went for the becker? Ever thought about retrofitting comand ? its easy but dealers will tell you it cant be done.

Hope this helps.
THANKS STEVE WILL TRY THIS

BEST REGARDS GARY :bannana:

THE REASON FOR GOING FOR THE TRAFFIC PRO WAS COST GOT THIS ONE ON EBAY FOR £ 190 PLUS I GOT VER 7 SOFTWARE WITH IT.AT THIS PRICE I CAN TREAT MYSELF TO SOME MORE TOYS.

[GARYB]

HI
SO FAR SO GOOD HAVE FITTED ALL WIRES BACK LIGHT, MAIN POWER IGNITION AN REVERSE. :bannana:

BUT AM HAVING PROBLEMS FINDING SPEED WIRE STEVE SAID I COULD PROBABLY FIND IT ON PLUG 24 PIN 3.
HOW DOES ONE IDENTIFY /FIND PLUG 24?

THANKS PEOPLE SO FAR FOR ALL THE GOOD FACTS AND POINTS.

REGARDS GARY B :confused:

[MBenzNL]

Set the wiper somewhere in the middle of the windshield - take off the lid on top of the fusebox - take off the screwed lid on top of the fusebox as well - take out the fuseholding block inside the fusebox - look at the bottomside of this fuseholding block - read the #s and look for #24 - pick the third out of 3 pins - connect a wire and run it to the headunit - voila...

greetingz,