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Volvo Penta MDI Black Box D2 -55 problems ?

markhomer

Member
Joined
9 Jul 2008
Messages
658
Location
clyde
Hi Ive just had to replace the MDI black box on the Volvo D2-55 engine , starting had become erratic and it was diagnosed the box which receives the signals from the evc push button controller in the cockpit . It was a mere £500 plus for box only plus fitting . To add insult to injury , volvo have recalled later engine black boxes but not mine despite they are obviously faulty , My boat was first commissioned 2008 and has 750 eng hours , I mentioned to my friend who has same engine and sounds like he has same problem . both elan 434 , buts its a volve D2-55 control system fault .

Volvo arent interested !!!!!!.

Im trying to find out who else has had this problem .
 

BrianReynolds

New member
Joined
7 Jun 2001
Messages
58
Hi Mark
I have had the same problem with the MDI unit on a D2 75 engine. The first failed and was replaced under guarantee, (I could show a video of it turning on theN just going off), the second one I replaced as it was out of guarantee (after 300hrs) so I bought it, but I wrote to Volvo with the details and they have agreed to replace it under a recall. Not got it yet.

Kind regards
Brian
INGA
 

richardh10

Member
Joined
7 Jul 2007
Messages
436
Location
on the move
Probably no consolation but I’m on my 4th unit, for a D2-40. All replaced free of charge under a recall. Apparently this last one actually solves the problem. We’ll see!
 

Slowtack

Well-known member
Joined
27 Feb 2007
Messages
1,953
D1 30 installed 2017. On third box. Replacements were free of charge but I was not informed about any recall.
 

Heckler

Active member
Joined
24 Feb 2003
Messages
15,847
D1 30 installed 2017. On third box. Replacements were free of charge but I was not informed about any recall.
I helped a guy on a brand new ovni, 5 boxes, a wiring harness, a new panel. I know what the issue is, I got involved on the periphery, Swedish techs came to Portugal and confirmed what I had found out. Contact me by PM for more info
 

JB-MHD

New member
Joined
22 May 2020
Messages
1
New member, old problem ... multiple MDI failures on a D2-75F. Extraordinarily frustrating.

I'm wondering whether the stop solenoid (back emf?) might be implicated in these failures. Any comments? Thanks.
 
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