Hey Matt, do you have the original build sheet for your 280SE. Mine was stuck to the last page of the maintenance booklet. It lists ABS as option 470. If not, you can download your build data from lastvin.com by entering your VIN. This should demonstrate that the ABS is an option. Lastly, I have a copy of the original english language sales brochure. It mentions ABS as an optional item. Perhaps it's worthwhile getting one of these online.
With all these combined it might be enough for you to demonstrate the standard model was not equipped with ABS.
Good Luck
Thank you kind sir, I'm being bounced between mechanics and auto-electricians, both pointing the fingers at each other & saying your job. Blue slip inspections are still refusing to budge on the ABS light. No one will fix it, huge $ numbers are being thrown around, and no one will entertain disconnection either.
The vehicle arrived with no paperwork whatsoever; I just found a manual in the UK for a horrendous price & bought it.
It's just been booked in with an outfit that specialises in Mercs; they claim it is never that the ABS lenses need a clean, the only way to fix it is removal of sensors and all wiring, and total replacement. I don't buy that either, all advice has been to clean the lenses first & see if the light goes out.
I'm perfectly happy to fight with RMS & argue as an optional extra, it makes no difference if the light is on; people drive around with the light on for years and it poses no threat. The braking system will not fail if the ABS light is on, in fact the "optional extra" system is, in effect, no different from pin-striping so far as braking & stopping is concerned, & can be removed or disabled and the vehicle should pass for registration. It is no different than a 280SE without ABS as an optional extra.
I also now have four emails from RMS with conflicting opinions, granting, withdrawing and reinstating an unregistered driving permit to drive the vehicle to various repairers.
I will try your suggestions, not the first time I've taken on the government & won. Sometimes it pays to be a lawyer.....