Two brilliant and very useful replies, thank you!
Only two comments. The main problem with those 10mm fillers isn't the filler itself but the adapter you have to use with them. 10mm isn't that big and they are usually made of brass so the weight of the filler nozzle can snap the adapter off. You'll need to be careful when filling to make sure it isn't taking the full weight.
Like you, I'd prefer to see the pipework hidden away but if you intend getting the install certified, it's likely they will take exception to it as the CoP says:
4.4.4 Pipelines should not be installed where any part is permanently hidden from view and cannot be inspected regularly.
Yeah, I'm aware that a lot of weight could easily be put on that adaptor, but I ran it on my e430 for several years without problem - good to be re-reminded of it's inherent weakness though..
As for the hidden pipe. Damn! I was really pleased with the way it sits. Surely these rules are a little out of date, as it would actually be quite silly to put the pipe completely on view due to all the plastic panels under the car? The entire floorpan of the w211 Mercedes is covered in plastic, and if I had to then remove those panels for regular maintenance, I'd first have to disturb the pipework. Interested to hear from other installers whether this would actually fail certification? - the wording of 4.4.4 says "should" not "must". Or am I just being defensive?
Somebody phoned me the other day, they'd read this thread and were asking for further info on the heater water shut-off solenoid at the rear of the engine.. Can't imagine that was you, or if it was your written English is far better than your spoken English! But this brings me to ask - Did yours have a water shut off solenoid, if so did you disable it?
Without re-reading all the thread, did I or someone else suggest your choice of liquid filter solenoid? A good choice!
You ought to have fitted the tank with valve at the rear to prevent fuel slosh from leaving the pickup pipe dry on heavy acceleration with partly filled tank.
What size did you drill nozzles to and what pressure are reducers set at? Are they the (taller) 400bhp MJ reducers or shorter 350bhp MJ's? Besides the bit of difference in design and rating the taller ones have a different (higher up the scale) range of pressure adjust-ability.
Presumably there's some sort of balance pipe between reducer gas outlets somewhere in the system?
I speak the Queens English Simon!
Or something like that... No, it wasn't me that called you. However, the car does have the solenoid and I haven't done anything about it yet. As you said before though, it just needs a dummy load to stop the error - I am mindful of this and will use an old 6mm solenoid that I have kicking about. But I haven't started the wiring in the engine bay yet, so that's on the list there.
The 8mm solenoid.. I think you recommended it when I installed all this kit in the e55 a few years ago - it's just being recycled. I guess I should probably replace the filter though?
I assume the injectors are the shorter ones - I bought them originally for my e430 5 years ago (using 1.5mm nozzles), I then drilled them out to 2.5mm for the e55, and then replaced the nozzles for this. I actually bought nozzles from my German supplier (Hybrid Supply) as they stocked all sizes and were only 79 cents each. I bought 2.8mm, which should be about right. Do you think I might need the larger injectors then? The car is currently 514ps apparently, but will be upped to 562ps when I get the speed limiter removed next month - but hey, I work in Germany, this is an essential mod!
Edit: I just went and looked at the injectors on my suppliers site - there seems to be two types of magic injector - regular and FX. I have the regular, but I can't find reference to the tall and short ones. The FX ones appear to have a larger operating pressure and quicker opening/closing times. They are about 20% more expensive. I guess they all have a finite life - mine must have done 40k miles and were working perfectly when last removed.
And yes, there is a balancer pipe. I'm using two Magic 1 to 4 filters, and they have a fifth 5mm output. These are joined together and T'd off to the AEB025 map sensor.
Thank you for your comment about the tank being 180 degree out. I swore when I read that, but of course it makes perfect sense. It's a couple hours work I guess, but I will turn it around - probably with more swearing trying to get the pipes to fit again!
Hopefully another update in a few weeks. I don't intend to leave it so long this time, as I can see the end in sight - but then family plus working abroad plus being bugged to rebuild the kitchen etc - you know how it is...
Thank you, this forum really is a fantastic resource.