A pre-purchase inspection is the cheapest insurance in R107 shopping. You are buying a documented list of surprises before money moves — not a perfect car.
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Buying pillar: buying guide. Rust: rust check. Chain: 380 chain.
Who to hire
An indie Mercedes specialist or dealer technician who has seen 107 bulkheads and CIS fuel systems. A general lane that only codes modern cars will miss what matters.
Cost range
Expect a few hundred US dollars for a proper inspection; more with travel, compression/leak-down, and fuel-pressure testing. Remote inspectors plus transport still beat buying blind.
Checklist to send the mechanic
- Lift: floors, sills, jack points, bumper mounts
- Blower cover off — bulkhead photos
- Compression / leak-down if warranted
- CIS fuel pressures when possible (a shop with a CIS / K-Jetronic fuel pressure tester)
- Cold and hot start
- Warm transmission behavior
- Steering play / coupler look
- Soft top and hardtop latch/seal notes
- ABS / airbag lamp behavior on equipped cars
- Timing-chain evidence on 380s
Questions for the seller
- Why selling?
- Service records — chain, soft top, rust repairs
- Any overheating events?
- Title status / accidents
- Quoted work not yet done?
Remote buying
Pay an inspector near the car. Require bulkhead photos in your report. Do not accept “my mechanic says it’s fine” without writing addressed to you.
Details that finish this topic
Who to hire
On an R107 this means verifying the condition on your year/engine before ordering parts. When in doubt, match the data card and engine number, then confirm with a specialist who works on 107s regularly.
cost range
Treat any dollar figure as a starting band that moves with city labor rates and how seized fasteners are. Get a written estimate for your VIN before you commit — especially for welding, tops, and injection work.
checklist to send the mechanic
Work methodically: reproduce the symptom, check power/fuses/relays, measure before replacing, then retest the same conditions (cold vs hot, loaded vs idle) after the repair.
