Hi Minikeefy,

For what it’s worth…..
My 2006 built 4/4 has a bank of 5 relays (plus a Wehrle relay for wipers). All are Ripca 268990 12v30/40A mini type B change over relays WITH SUPPRESSION DIODE. (Others available, 12v Planet stock “Durite”).

I cannot comment on Bosch and whether it has diode suppression or your car needs it but Spanner Juggler and others have written interesting posts in the past, well worth a search and read.

Hope this helps.

Regards

Geof
70th Anniversary 4/4 (Duratec 1.8), model 1995