Engine difference between G 280 CDI and G 300 CDI
I'm interested in purchase a used G-Wagen and transform it into a long range travel / Expedition veichle.
I'm confused about which model best suit my needs and is more reliable.
I found an interesting G 280 CDI EDITION30.Pur with Offroad Package 2. I was tempted to buy it but a guy warn me that it's better to choose the G 300 Professional because the engine is more reliable thanks to a factory added oil cooler and a different ECU that allow better handling of the faults and limp mode.
Which in your opinion is the more reliable engine ? Which model you suggest to buy ?
Thanking in advance for any advice,
Mario
Hello Mario,
It may be possible an answer may not be got from the UK as we do not have; as far as I am aware any 280CDI's G-Wagens' in the UK.
A clue to your answer is to see what reports come out from the saloon versions of these engines being employed. Remember G-Wagen engines are somewhat similar to saloon models save for the the fact when employed in G-Wagens the compression ration is reduced a little to compromise for off-roading performance.
the following could be of interest: http://www.mercedes-g-entdecker.com/
After some searching, I can say that both engines are basically the same except for the following:
G 280 CDI engine come with dual alternators 12V and 24V.
G 300 CDI are supplied with one 12 V 180A alternator.
G 300 CDI engine will run about 15°C hotter to better cope with Euro 5 requirement, this is the reason for the added oil cooler. The G 280 CDI is Euro 4 only.
In case of limp mode, the G 300 CDI ECU allow more power than the other engine.
Interesting fact that, the 24v/12v on the 280CDI.... I wondered why some of the professional Gs I'm watching on mobile.de had the 24v socket on the back of the cubby box, but the really nice green 300Cdi professional I looked at, didn't have it.
has nothing to do with the choice of engine but when built: from mid-2011 12v only.
^^^^ Ah OK....
24v could be useful.... less amperage draw on a winch, and decent coockers/heaters or fridges can be fitted... 24v stuff always seems better and more powerful, probably as that's what most trucks use.
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Thanks all for the advice.
The Entdecker transformation is simply outstanding but it's a really expensive vehicle.
It's actually no longer available because G280/G300 production was stopped due to the engine Euro 6 emission failure, now mandatory for new vehicle sold in Europe.