1994 Mercedes-Benz S-Class Recalls
No NHTSA recalls on record for the 1994 Mercedes-Benz S-Class. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 14 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Instrument cluster dose not fully work. The temp gauge is the only one that works all the time. The rest of the time, the cluster may work for a time them stop functioning altogether. *tr”
“Mercedes-benz engine wiring harness defect concerning the chronic engine compartment wiring harness failure suffered by (at least) 1992 through 1995 mercedes benz automobiles. I am outraged at mercedes-benz' refusal to take responsibility for this design defect. I do not understand why nhtsa has…”
“I purchased a classic 1994 s320 from the original owner and after finding out I had a oil leak I had to have the engine gasket replaced the mechanic said that this was a problem with this model also I've had to have the wire harness replaced be cause I was told that the harness was made from…”
“I own a 1994 mercedes s600 with v12 engine. The wiring harness on the engine has deteriorated to the point that it is a hazard to drive on the highway not only for the safety of my family but to the general public, it is a fire ready to burn at any moment, I understand that mercedes will not admit…”
“Two reputable independent mercedes mechanics informed me that the engine wiring harness insulation in my 1994 s420 is decaying which may have caused my lh control unit, and m.a.f to fail to malfunction and this problem is prevalent in mercedes vehicles made from 1991-1996. There should be a recall…”
“Engine wire harness is corroded causing severe mechanical problems. *tr”
“Engine runs erratic, various electrical malfunctions including temp gauge, srs, fuel injection. Car sometimes will not start and others starts immediately. Repair shop says engine wiring harness needs replacing. *tr”
“Engine runs erratic, various electrical malfunctions including temp gauge, srs, fuel injection. Car sometimes will not start and others starts immediately. Repair shop says engine wiring harness needs replacing. *tr”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1994 Mercedes-Benz S-Class as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.