This just in from the USA Classic Center...
Idle Solenoid Available Again After Long Absence
Great news for owners of classic Mercedes‑Benz models with fuel-injected in-line six engines built between 1963 and 1972. The idle solenoid is now available again after a long absence! Fits all M127/129/130E engines. Call 1-866-622-5277 or email classicparts@mbusa.com to order yours today for $1,680.00 (retail $2,100.00).