vito engine help

[endo97531]

i have a 2005 vito 111cdi , 300,000 miles on the clock and the engine went bang (hole in block), does anyone know if the 150 bhp engine will plug straight in and run , i can get a complete 150 engine with pump , injectors and turbo from a very low mileage van , i think that it would bolt straight in but is there anything else like the ecu that would be needed for this

any help please

 

[curious]

It'll be the OM646 engine in yours and the '150'. The power difference will be in the ECU's mapping, the mechanical bits will all be the same. Don't change the ECU or you'll have change all sorts of other elctrical bits.

When I got my 109 remapped I cross checked all the part numbers between mine and the more powerful ones to see what (if anything) I needed to upgrade. The turbo, injectors, exhaust, brakes, etc, all had the same part numbers. The only difference was the rear axle ratio.

 

[endo97531]

thanks Curious for the reply , just looking at getting remapped to suit after the engine fit , it seems strange the racechips offer different chips for the 3 engine output , i would have thought they would be the same

 

[curious]

I'm not that familiar with the 'chip' method of remapping. The remap I had done was entirely by software with no hardware changes.

 

[endo97531]

what power did you have your mapped to and how long has it been done ,any problems

 

[curious]

From 95hp to 145hp. No problems whatsoever. It was done approx 8 years ago. (I checked the compression and injectors were ok with Star before I had it done. It only had 60k on the clock at the time. It's now at 110k)

Ideally I should have replaced the rear diff with a taller ratio but never did. In a way it's probably just as well. It now does 100mph downhill, on the flat and up hill. It's held back by the rev limiter.

(I had an RAC man come to the house to deal with another vehicle and he noted the Vito and the 109 badge on the rear. He commented that they map really well if I was ever inclined. Already done was my reply. He smiled.)

 

[M80]

My 1st Vito was a 2007 Traveliner, so the lower ratio diff.
I was told it had been mapped at new(ish).
I bought at 294k miles, and sold at 329k miles, more than 3 years later.
Power was fine, my only issue would be it trying to fight the parking brake at lights with such low down torque.
I only sold it as I finally (after much effort) concluded that vibes were from the already reconned auto box (reconned at 280k approx), and I couldn't justify the cost of having that done. In truth I should have.

In my mind the advantage of mapping a Vito is for easier acceleration at the lower speeds, with your present diff I would have thought that you already have that.

 

[curious]

Mine's a manual and I almost get through the first 2 or 3 gears quicker than I can change gear. (Vito manual gearboxes are not the fastest for gear changes). Very often I'll pull away in 2nd for ease.
Overtaking is where the power difference really comes in. It's just much quicker and safer.

 

[M80]

I intend, some fine day, to remap the Viano. I would then like to swap the diff for the lower ratio V6 CDI diff.
Torque is expected to be up by 25%, the new diff is 11% lower revs. That should make for nicer cruising, some extra oomph, and feasibly better economy.
For that I would need to make adjustments within Star so the ECU doesn't throw a traction control wobbly. So far I don't know where to find that in Star.

 

[curious]

I intend, some fine day, to remap the Viano. I would then like to swap the diff for the lower ratio V6 CDI diff.
Torque is expected to be up by 25%, the new diff is 11% lower revs. That should make for nicer cruising, some extra oomph, and feasibly better economy.
For that I would need to make adjustments within Star so the ECU doesn't throw a traction control wobbly. So far I don't know where to find that in Star.

Would it throw a wobbly? Doesn't traction control rely on wheel speed sensors without worrying about axle ratios or gearboxes?
Admittedly I don't know how it would behave with engine speed/road speed/automatic gearbox gear issues.

 

[M80]

As I understand the system would be seeing an 11% difference between axles, on bends this might increase for a particular wheel. 'I understand' that would be interpreted as lost traction.
Somewhere in Star the diff ratio should be updated. When I have time, on another fine day, I'll go looking into Star in hope.

 

[endo97531]

Thanks for that , the engine has been purchased and on way now , 150bhp with 90,000 on it , just need to now get the van recovered back to me now from a friends yard to start to pull it out . has anyone replaced there engine, if so would it be easier to pull it out with the box attached

 

[M80]

I had 651 engine out. it is more complex than yours.

But I removed bumper and cross member, and all fluids and radiators
With a 2 ton hoist and load leveller it came out forwards c/w auto box.
I had to manipulate angles as it came with the load leveller, the nut came off the leveller on mine due to poor design.
I used jacks under to help the engine and box clear stuff.

I've had boxes out on 646 Vito's and I reckon they can be unbolted easier than on mine. But as you will need to drain all fluids I'm not sure there is any advantage to separating them.

 

[endo97531]

Thanks all , I have now swapped the engine and box , not a bad job. I have one small problem I have lost a seal that goes in-between the clutch slave cylinder and the clutch hose , does anyone have parts diagram for this or know where I can source one .

 

[M80]

Mercedes > Mercedes EPC Online > nemigaparts.com

Parts catalogs. Spare parts catalog Mercedes EPC Online. Mercedes.

nemigaparts.com

might show it

 

[curious]

Item 11 looks about as close as EPC will provide...

 

[endo97531]

Thanks again , just about to order one and guess what ? The seal was sat on the gearbox crossmember, all assembled and bled , all works bbeautifully . Hopefully all that is left to do now is a bit of welding and back on the road

 

[endo97531]

Hi all , help needed again
Engine is now running but seems to be hunting at tick over which does stabilise when warm , it also won't rev past 2,500 in neutral, there are some fault codes ,
2201
2208
2242
2243
2386
Any help is much appreciated, only have basic fault reader, can anyone point me in the right direction