Vasilios_Billy
Lifetime Benzer
Join Date: Mar 2008
Location: Campbelltown NSW
Posts: 2,031
Club: M.A.L.A.K.A.S.
Car: 2020 AMG GT C
Brent - the part you're holding is the warm-up regulator thermostat for the M130 mechanical injection (D-Jetronic warm-up enrichment).. its a wax-type expansion thermostat with a calibrated rate of opening - when it fails the warm-up enrichment doesn't taper off as the engine warms, which is exactly the rich-running symptom you're describing..
Mercedes-Benz part number 000 074 14 22. Bosch superseded part number 0 280 030 016. NLA from Mercedes-Benz Group, last batch sold through Mercedes-Benz Classic in 2009. Current sources:
- JanesBenz Portugal (Paulo) - has 3 NOS units at €120 each. $195 landed.
- Pelican Parts USA - aftermarket Bosch-spec at $89 US + freight. $175 landed. Quality is acceptable for daily use.
- BERU/Behr equivalent via Niemoeller Germany - €68. Functionally identical, different stamping. $110 landed.
If you can wait 4 weeks the Niemoeller BERU equivalent is the best value. If you need it quickly Pelican Parts is 7-10 days. Paulo is the most expensive but the most original.