How bad is this? Is it too far gone or worth getting

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How bad is this? MOT

Monitor and repair if necessary (advisories):

  • Oil leak, but not excessive (8.4.1 (a) (i))
  • Nearside Rear Seat belt anchorage prescribed area is corroded but not considered excessive inner and outer sill (7.1.1 (a) (i))
  • Offside Rear Seat belt anchorage prescribed area is corroded but not considered excessive inner and outer sill (7.1.1 (a) (i))
  • Nearside Rear Suspension component mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
  • Offside Rear Suspension component mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
  • Nearside Track rod end ball joint has slight play (2.1.3 (b) (i))
    (upload://vc4SEsIJvKq5DmHt8OGnmskkIUK.jpeg)
  1. My model of MX-5 is: __

Which model?

Sounds to me like a good MOT tester telling you about non fail issues that need your attention. You do not specify what is leaking oil?

Minimum body work issues by the sound of it, if it was mine I would clean of rust areas then treat with body wax/good quality underseal e.g. Dintrol, Bilt Hamber (I don’t like Waxoil) or have it done by a specialist like MX5 Restorer (you don’t specify your area). See below. I paid £480 for a full cavity wax and underseal by MX5 Restorer and would use them again.

https://themx5restorer.co.uk/services/

Roy

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I think the two seat belt anchorage points may need more than a clean up and wax.
You don’t specify what model you have but if it’s mk3 or earlier I would be prepared for some big repairs to inner and outer sills!
Further investigation is probably wise. Depending on where you are there are specialist’s (detail of most can be found on this forum somewhere) that can help.

Some photos would help if you can.

All models models rot from the inside out. Rust appearing on the “sills” is more often than not a portant of repairs needed. You can either be proactive, and deal with it, or wait until it actually fails, or when the rear jacking point collapses when there is no actual sill left (the sill itself is internal).

If a NA, more likely than not, its had sill repairs before, to varying degrees of quality. Metal repairs might last 5-10 years. Most repairs would have initially just tackled the “sill” area. The next round of repairs likely involve the arch as well, So the cost will be about £700-900 per side (including paint). If a NA, unless the rest of the car is obviously decrepit, likely this is the only rust that you will really need to worry about.

If a NB, ditto the statements about the sill, though maybe a slightly lower rate of repairing a previous repair (but many will have been repaired). However, additionally, such comments would raise a red flag about the state of the front chassis legs, which might not have been noticed by the MOT Inspector, due to the engine tray covering things. NB front legs rot out, from the inside out, due to their construction (NAs not so much). Repairs would likely be ÂŁ500-1000.

If NC, rusty cars seem to be rusty everywhere. THere are some bolt on replacement parts, but most repairs will need fabrication, and they could be chasing down a lot of damage.

NAs drip oil. Usually doesn’t get worse. Can be easy to fix, if from the cam cover, less easy to fix if the sump, or rear crank seal. Mine is leaking someplace (not the cam cover) but not enough to really warrant chasing down.

If NA, rust on the subframes and arms is usually just surface, and can be cleaned and treated. If NB, because the pressings changed, its possible for the arms to rot out to the point of being weakened, and will need replacing. Pattern NB arms are available, and are cheap, but there is significant labour because obviously the suspension needs dismantling etc.

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Hello and Welcome :smiley:

To MX5 Ownership & Club

Good News…‘Advisories’

Good News…Loads of Owners Here to Offer Advice & Guidance

Bad News (?)…It Will Boil Down to You Making a ‘Judgement Call’ on Your Vehicle

Many of Us are Enthusiasts …Hence a Bit Biased :upside_down_face:

Depends What You Want from Your New Purchase ?

Model Type Will Help Members More Knowledgible Than Me

Kindest

Testers do like an advisory, oil leak is minor or it would have failed , it’s not rotten or it would have failed , just keep your eye on it

This car has never had a rust advisory. Rust is always worse than it looks.


When rust appears on MX5 sills, its beyond “keeping an eye on it”. There is a process ongoing, where the outcome is inevitable. If it passes now, I expect by the next MOT it won’t. It’s a waste of time attempting “cosmetic repairs”.

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Joshua,

What area are you in? If near MX5 Restorer they carry out a 19 point inspection F.O.C. Worth having them check your car over, they will then be able to advise you. They know MX5’s and work on nothing but, much of their work being bodywork restoration.

Roy

Rust round the seatbelt points can be localised or it can run right down the inner and outer sills eating the middle strengthener as it goes and up the a and b posts and meet rust coming in from the arches. I got a clean mot with my car in that later state.

You can be lucky, fudge it or if it’s really bad have both sides of the car replaced with a mixture of replacement panels and some fabricated for the job. The later is likely to involve a partial respray if not a whole one. Prices thus vary tremendously and some/ many garages won’t take on a really big welding job. You need to take it to a real pro outfit to get a proper view and even then they may be dubious about giving a fixed quote as they need to cut it open to see if it’s really bad.

Pictures are needed .
M-m