You need senders to match the gauges, the temp gauge can be 0-150 or 0-180, so you need the temp sender to match, and the oil pressure can be 0-5 or 0-10 bar, again you need the VDO dual pole sender to match. Once you have that, you need to decide if you want both the MFA oil temp and the VDO, or just the VDO. Reason is you need to fit an extra sensor in for it, you cant run them both off the same sender. If you want both you need to get a t-piece adaptor, so you can screw 2 sensors into the same hole. If you don't care about the MFA, then you can just take out the mfa sender and screw in the vdo sensor (The mfa sensor isn't suitable for vdo gauges, as its only rated 0-120)
Then you need to fit the pressure sensor. The dual pole sensor is designed to replace one of the existing pressure warning sensor, and provide both the low pressure warning and the feed for the gauge. There are 2 types of these too, 0.3 or 1.8 bar. If its the 1.8 bar type it replaces the white high pressure warning switch with a yellow wire, of its 0.3 then it replaces the black or brown low pressure switch with the blue wire.
Hope all that makes sence
