zafira4ever wrote:What's the mileage? If you need the trip computer on gas, you need to fit a fuel gauge emulator as well. Can your garage do it? Is it in the conversion price?
Are you willing to change insurance company if one is cheaper or better stay in status quo?
Does your insurance company insist on UKLPG cert?
If they do, can the garage provide drivelpg registration? Is that in the price or how much?
Where do you want your filler fitted? Some converter insist on fitting in the metal only because they don't do with reinforcement in the bumper or they charge you extra.
As long as you do not have DPI engine or turbo the brand does not matter too much. It is like saying Toyota is more reliable than a Merc ... but my previous w140 had done 340k.
If you convert, convert it with locals where you live. Why? Because you will need to tweak the ECU after running it uphills, highways, traffic jam etc. Which is never available in a garage for hundreds of miles long, does not matter if they do it in 1 day or 1 week. Unless you have a self adjusting system installed. Ask your garage if they can fit one like this in case you convert further. I had Romano system installed years ago and now I have Stag. I was happy with both. The job quality depends on the experience mainly.
A friend converted here in Kent an 05 RR with a garage that has RR warranty, UKLPG and the engine blown up a month after. No one knows why but he had problems with dripping coolant. I had mine with profess done and had trips in France with an avg 90 mph with no problems so far. You can find more complains (if they are all true) on profess because they convert daily six cars, which involves proportionally the same complains as anyone else has got with weekly 1 conversion. profess, mint, lpg leeds converts in one day and you need to go back before reaching 1000 miles for a revision again. I have done mine by phoning up Collin and it was a piece of cake for me, maybe for you, using the computer will be harder. You have better to get there in person and ask to show in place the things. Make a list of your questions and ask them each.
I could have for an additional £60 a UKLPG certified test but swift did not ask for anything.
I was with direct line but after conversion swift (elephant) was cheaper, so that I changed insurance company as well.
I would rather go for a conversion by GO-LPG knowing, that they had issues, than someone unknown from the bush stating they are lpg engineers, just because GO-LPG is in business since 30 years.
People are not queuing at the fish n chips shop because they are cheaper, but because they are fresher and have more experience.
There is some rather dubious information here, an emulater is not needed so the fuel computer runs correctly, one can be fitted so that it resets the fuel gauge as the one on the ML is electronic and will continue to go down even when on LPG.
The filler location is up to the customer, an installer will recommend certain locations and agree upon one with the customer. If it is a done in a day conversion then the time constraints may not allow to have the filler fitted in certain places because there is extra work involved.
The vehicle does not have to be on the UKLPG register, some insurance companies will be OK with a certificate of conformity provided by a non registerd installer, some won't, it is up to the customer to check what their insurance requires.
Not sure what a DPI engine is, but it makes no difference if it is normally aspirated or forced induction on the type of system fitted, as all modern injection ssytems will run just fine. As has been said before the system must be up to the job and capable of supplying enough LPG under high demand.
To be honest, the mercs take to LPG very well. The ML500 although is a large displacement is not that demanding as it is only 292 BHP which is only 36.5 horsepower per cylinder. almost all systems available today will run this without any issues.
The two sytems I mentioned have Vapourisers rated at 390hp and 400hp so are more than capable.
I would recommend using an installer local to yourself. You have two options for that as you have mentioned. either locally to your home or in London. My number is 01600 714599 if you wish to talk to me, but I would recommend talking to or even visting the garges to see what they have converted. See if they will put you in touch with previous customers so you can get a good idea of the service they provide and if they think they got good value for their money.
Done in a day conversion are all well and good, but they will fit items like fillers switched and any other ancillaries associated with the system in the easiest most accessible place, this does not always make for a neat install.
This link will give you an idea of the work some of the installers on here have done, none of them are done in a day experts!!
http://www.lpgforum.co.uk/viewtopic.php?f=33&t=10846