The Mercedes-Benz ML 270 CDI with a Lunar Lexon 640 with an actual weight of 1640 kg is in general a good match and suitable for all journeys on all kinds of roads.
The motor preformance of the Mercedes-Benz is in general good. And also the weight of the Lunar with a User Payload (170 kg in the caravan and 200 kg in the car including passengers), is very good.
Flat roads
Towing Performance
234
257
Mountains
Risk of snaking
255
202
Weight ratio: 66% (72% of kerbweight)
1640 kg
2475 kg
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Mercedes-Benz ML 270 CDI Lunar Lexon 640
Actual Weights
Lunar Lexon 640: 1640 kg.
Mercedes-Benz ML 270 CDI: 2475 kg.
Noseweight: 90 kg.
Actual weight ratio: 66%.
Performance
The engine's performance is generally good on flat roads (performance score to compare 234 points).
Speeds of 77 mph (124 km/h) to 82 mph (133 km/h) are often quite possible.
There is a lot of power at low engine speeds (score to compare 257 points).
Higher revs (1600 rpm) are usually not necessary on flat roads, under most circumstances.
Acceleration from 0-62 mph (0-100 km/h) is theoretically possible in 20.5 sec.
In the mountains the performance is generally very good (score to compare 255 points).
No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 16%.
On motorway inclines higher revs (2800 rpm) are needed.
A speed of 65 mph (105 km/h) is usually possible on most motorway inclines.
Weight
The towing limit of the Mercedes-Benz is more than sufficient (check this in your vehicle documents).
If you passed your driving test after 1 January 1997, you will need a B+E driving license.
Weight ratio between the laden caravan and the loaded car is 66%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 72%.
The chance of snaking is small even at higher speeds.
Recommended noseweight is 90 kg.
Stability and safety score to compare is 202 points.
If the caravan starts to snake you should reduce your speed and slow down directly! Lift your feet off the accelerator and brake gradually. Hold the steering wheel into a fixed position.
Conclusion
Performance is good.
Safe driving is possible.
It's a perfect match!
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.