Go LPG! Research - Mercedes

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'R' reg. 500 CL 5.0 litre V8

Impressive 5.0 CL V8.

It'll be a lot cheaper to run on LPG......

Not many companies will tackle the big Merc V8's as they are difficult to convert properly.

When we hear stories like that its like showing a Bull a red rag......!

The job took a little development but the result was worth it.

The converted car's performance on LPG is very good, especially when it is 'on the cam' at around 3,500 RPM. It is hard to tell which fuel the engine is running on. Only the day to day thickness of the owner's wallet gives a clue.....



Here are some pictures of the converted 500 CL

Fitting a cylinder tank is very difficult on this model as it has no firewall and effectively no boot floor to speak of (the petrol tank forms most of the boot floor).

We finally settled on a spare wheel tank. A 70 litre spare wheel tank fits very well. The remaining boot space is unaffected whilst the tank holds 56 litres (12 imp. gals) of nice cheap LPG.

The CL's rear bumper is totally enclosed from underneath, making it practically impossible to fit the LPG filler point into it.

Just about the only realistic choice for both safety and ease of access is to fit it on the lower portion of the bumper.

The LPG reducer and associated pipework are mounted on the nearside inner wing.

When the plastic ('underbonnet architecture') trims are refitted the reducer can hardly be seen.

The 500 CL centre console does not have any useful blank fitted so the fuel choice switch could not be sited there on this occasion.

Eventually we decided to fit it in the upper footwell to the driver's left. It is a good position, easy to reach but not stuck in your face. This is important on long night journeys. The switch is seen here in the centre of the picture.

The injectors have to be very carefully placed to get the correct performance and problems do not end there....

What looks like an engine cover on the V8 is actually the air filter unit. It must be replaced but it won't fit. A little adaption has to be carried out. We have a fully equipped machine shop to help us out with that.

Your 500 CL or other Mercedes V8........

Pricing -

The Merc V8 conversion is very specialised. You won't find many firms offering to do it, and even less getting it right. We have converted several similar cars and have all the data recorded to do more. Romano 'N' system multi point sequential gas injection equipment is installed, fed by a 70 litre toroidal tank. None of the equipment we fit is the cheapest, and we make no apology for that. Quality is remembered long after the price.

The reasoning behind our choice of conversion equipment is fully explained in the item 'What type of conversion is best for my car?'

All owners report savings in fuel cost of at least 50%, some above that if driven carefully. It is very hard to tell when the car is running on gas as performance is practically identical to that of Petrol.

The conversion takes 5 days to complete (including up to 100 miles of fuel mapping and road testing) at a cost of �2250 fully inclusive.

We give 12 months parts and labour warranty and issue an insurance certificate with every conversion.


Contact us to arrange the conversion of your vehicle using the latest Romano 'N' multi point injection system

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LP Gas burns cleanly.....

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Click here to get a quote for the conversion of your vehicle