Warning light

[johnhogg441@]

Hi All - New to this forum - I have a 2006 Viano Diesel - a fault light has come up recently showing a red fan on the left of the display. The Handbook says something like Electronic Box Fan failure. I presume this means a fan in the electrical box under the bonnet which contains the ECU and a fan is provided to cool the ECU. I have looked all over the box and cannot find any signs of a fan or a listing for the fuse that might control such a fan. Any suggestions on an easy/cheap fix or at least where to find this fan. Your help would be much appreciated.

 

[johnhogg441@]

Hi All - Just another question - does anyone know a provider that would supply replacement body panels such as jacking-up points(outriggers),front and rear for my Viano. Even a set cut off a good body would be fine. Your help would be very much appreciated - Cheers.

 

[Blobcat]

I’ve moved your posts out into a new thread for you.

Please post a picture up of the warning light

 

[Droverunner]

Hi and welcome to the forum.

I think the light is for the ECU compartment cooling fan which is hard to find at the bottom of the box. See item 33 bottom left in this diagram. Quite likely the motor bearings have dried out stopping it.

 

[johnhogg441@]

Hi and thanks for this diagram - it is shown at item 33 - but is this inside the box or underneath the box -= how are you expected to get at it?? great help thanks.

 

[Droverunner]

I honestly don't know if in the bottom of the box or just below. It's all a bit tight there. I think I'd just gradually start to remove stuff and search it out.

 

[johnhogg441@]

I think you are right - I will just have to see where it takes me.

Thanks for your help.

Yours John

 

[Droverunner]

I've been out with a torch and mirror... can't even get a clue where the blower might be. I think you'll have to be the guinea pig on this one.

 

[johnhogg441@]

Hi Droverunner - Thanks for your help so far - I have another problem now - I posted it in 'Electrical' but basically, I have a No1 injector not firing and the error code shown open circuit for that injector. I had the injector replace recently for the same problem - which has returned. I have replaced the plug at the soldered connections but no improvement. I see there are some injector plugs with long leads pre-soldered on ebay and wonder if I can bypass the harness. Do you know where the injector leads go to within the harness?? If I knew that I might be able to go directly to the connection and bypass the harness.

Any help will be appreciated.

Yours John

 

[Frontstep]

This might be a help;

 

[Droverunner]

I know it's a totally different car Frontstep but actually having a look for the blower on the Viano I thought the most logical place if I was designing would be to have it up under the glovebox area blowing through a tube to the electronics box.

And John re the injectors... I'm no help I'm afraid. I've owned and mostly DIY maintained 24 diesel cars with up to 249,000 mls recorded.... and apart from a very crude mechanical system on a Series 3 Land Rover have never suffered faults with any of them. If either of our CDi Mercedes were to suffer such a fault I'd be starting from scratch with online help to a certain point but likely pass the job to a MB specialist.

 

[johnhogg441@]

Thank you both for your help - I have just watched the video and I think it might be the same for the Viano - when I round to finding it - I will let you all know.

Thanks again.

 

[LostKiwi]

Thank you both for your help - I have just watched the video and I think it might be the same for the Viano - when I round to finding it - I will let you all know.

Thanks again.

If you put an @ in front of the forum name it will pop an alert up for him next time logs in.

Like this @leespo

 

[M80]

The ECU cooling fan is within the under bonnet fuse enclosure.
The enclosure is sealed to prevent v destructive ingress, so it only moves the air around within, although it may draw air through the cable route from the cab, where to would be a mystery though.
In there you have the Fuse / relay tray atop.
The SAM is screwed underside of that tray with 1 screw from the top. The fuse tray needs come out to access it.

Front is the ECU, with the 2 slide clip plugs into it.
Below that is the TCU.

The fan is powered via a delicate 2 pin plug into the SAM. They easily break during tray removal / replacement.
I broke one and pretty sure it disabled the fan (from memory). It didn't initiate any dash alarms. In the dash 'Faults' section does it give any more detail of the problem?

 

[leespo]

If you put an @ in front of the forum name it will pop an alert up for him next time logs in.

Like this @leespo

that certainly worked, not sure I can help in this one but got the notification

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