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What's the maximum I can tow?

When I took my B+E test a few years ago, the instructor told me that if a trailer has a MAM of 3500kg, then a car that can tow 2800kg MAX cannot legally tow it, even if the trailer was unladen (say for instance the unladen weight was 1500kg, well within the cars capabilities).

I have tried finding this information on line and cannot find this rule anywhere. I am asking because I occasionally need to tow, but am thinking of getting a vehicle that has a max towing capacity of 2500kg, but the trailer I have has a MAM of 3500kg (but I would only put 1000kg max on it and the unladen weight is 1000kg).

Asked on 26 September 2024 by Luke Taylor

Answered by Craig Cheetham
This is a more common question than you realise and the answer is yes, you can. The MAM of the trailer applies to what it can carry itself, but it doesn't preclude you from towing it with a car that's rated to two 2500kg. You would only be breaking the law if the trailer and its load exceed the 2500kg towing weight of your car. However, it is best practice when towing to ensure the trailer you are pulling does not exceed 85% of your towing vehicle's weight, so while it isn't a legal requirement, you may wish to bear this in mind if towing regularly.
Tags: towing
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