Trying to avoid rust is a battle most UK owners fight eventually, with our damp winters and liberal salt application in winter. So you must ask yourself: fixable or replace it?
Assessing the Damage
Surface rust: light orange discolouration with no penetration. This is repairable. Light rust is peeling and has small pits, but the steel is still OK. Serious rust is causing holes or making the metal thin and weak, or compromising structural integrity – this needs to be replaced.
When Repair Is Appropriate
Rust on non-structural components such as mudguards, toolboxes or bodywork areas can often be treated successfully. Brush the affected area with a wire brush, treat it with rust converter and finally prime/paint. For Trailer Parts, consider https://autoandtrailer
When Replacement Is Essential
Never compromise on safety-critical components. A rusted axle, suspension mount or coupling mechanism or corroded part of the chassis frame should be replaced. If rust has created holes or badly thinning the metal, you have no choice but to replace it. If any of the brake components show sign of rust they should be replaced straight away.
The Cost Consideration
Surface rust is cheap to repair – maybe £20-£50 in materials. Thousands of pounds for replacing major structural components are quantified, but non-negotiable on safety grounds.
Prevention Is Better Than Cure
Cleaning on a regular basis, especially after winter trips to get rid of rust before it starts. Spraying it with protective chemicals is advisable annually and store when not in use, or keep it covered.
If you are not sure, seek some professional advice from others. You can sort of repair cosmetic rust, but any structural problems affecting high-stress parts (like suspension mounts and such) usually mean you have to cut the bad bits out. It all hangs on you making the right call, and your safety (and that of other road users) depends upon it.
