When a fix becomes a mod (Guess the mod)

[markjay]

Is there a clue in the name - 'When a fix becomes a mod' - suggesting that something broken was replaced with something better? As opposed to simply upgrading existing (working) bits?

 

[jasonyw]

He got a DVD player and put back the old Merc CD player, now he wants to remove the screen switch will leave a hole. The clue is how did he take out the screen switch without leaving a hole in the veneer?

 

[Koolvin]

... see page 4

 

[Koolvin]

... see page 4

 

[Koolvin]

... see page 4

 

[Koolvin]

The Winner is Jazz!

The giveaway is the rest function with on a prefacelift (older sport trim)
The interior heating/cooling fan only blew at one speed and sometimes never at all...

A quick read and I found this thread: http://www.mbclub.co.uk/forums/interior/4695-grrr-interior-heater-blower-intermittent.html

I ordered new bushes and promptly decided to replace, the old bushes although worn didn't seem to be the culprits.....

 

[Koolvin]

So blame immediately went to the Final Stage Resistor, located on the fan unit - swapped this out and no joy

 

[Koolvin]

It turned out to be the heater control unit....

We (Gurpz and I) sourced another unit from a pre-facelift (210 part number made by Bosch in France) but it had the same problems (along with a blown bulb)

We then sourced another unit from a facelift and as you know the facelifts CANBUS had the rest option.

The facelift (again a 210 part number again Bosch and made in France) from a late W reg tiptronic Elegance this was better but not 100% as in it allowed me to regain the option of controlling blower speed. To our suprise the rest function worked 100%

 

[Koolvin]

Note how Shude's version is completely different on the rear

 

[Koolvin]

fitetd and working! OEM facelift sport heating control unit (with rest) in a pre-facelift 202 Sport. The revised unit is so much better in terms of ease of fitting and I am confident it will not fail like the 210 part numbered units.

Gupz thanks for your time and help with this mod - Gurpz is reviving my 202. Thanks to Shude for his unit - his car lives on in mine

Watch those eBay sport units fly out the door on eBay!

Now to replace the bulbs on Shudes unit.

 

[clk208]

NICE WORK!

My facelift 208 has the REST feature and it's really useful.

 

[Sickpuppy e220]

Hmmmmm
Stereo mute?
Nothing but a guess though lol

 

[Sickpuppy e220]

Bugger. I didn't realise there was 4 pages of replies lol.
I was way off target anyhoo

 

[lars-mad]

It turned out to be the heater control unit....

We (Gurpz and I) sourced another unit from a pre-facelift (210 part number made by Bosch in France) but it had the same problems (along with a blown bulb)

We then sourced another unit from a facelift and as you know the facelifts CANBUS had the rest option.

The facelift (again a 210 part number again Bosch and made in France) from a late W reg tiptronic Elegance this was better but not 100% as in it allowed me to regain the option of controlling blower speed. To our suprise the rest function worked 100%

do you have the part nr for this unit? got the same problem you had.. and it is the control unit