30-Amp F1 Pump Relays 575M

As mentioned on the 360/430 forum, the later model 430's had an external diode to protect the new 50 amp relay contacts. There is a diode inside the Tyco -X152 (across the contacts) which may perform the same function as the external diode, but there appears to be no diode across the contacts in the currently available -X266.
The diode is available from Ferrari at a cost, but would need to be wired in.

You seem to have got in at the right time, Terry.

 

I replaced the relay with this a few years ago https://www.scuding.com/Shop/en/ecu-solutions/101-smart-emt-relay-ecu.html

 

I just read the specs on the -X266, and it says something like "contact the relay manufacturer if you need a custom relay with diodes, etc. It seems BMW may have requested these. I see some relays for sale labelled Tyco/BMW and they show a diode on the output pins.

https://www.ebay.com/itm/174757819805

U$112 though.

 

Good thread guys, Thank you!
Bill
FL

 

Interesting about the diode. I put one in my Gallardo.

https://www.ebay.com/itm/363997681230

~$46

 

i ordered the BMW Replay:

Tyco V23134-B57-X266: BMW Part Number 6136-8-366-646

Have not installed it in my car as of now.

 

same here

 

tazandjan.
Thanks for sharing the detailed info.

The full part number helped identify the correct relay.

BMW Parts did not have it on the shelf. They had to order from their warehouse: the X152 @ $35.

FYI - They quoted the X266 @ $65.

 

Question:
If I upgrade the F1 Pump Relay to the "X152" - Should I upgrade/increase the F1 Pump Fuse from A30 to A40???

The reason why I am replacing the Relay is because it has burnt two (2) green A30 fuses.
I am hoping that the Relay replacement will fix the A30 fuse problem.

Thanks!!

 

Not knowing the circuit you are dealing with, I would be highly doubtful that changing the relay will fix your blowing fuse issue. I would NOT replace the 30A fuse with a 40A. You are looking to burn up some expensive pieces if you do that. You need to figure out why the 30A fuse is blowing.

 

Thanks. I appreciate the feedback and advice.

After further research, I am now more inclined to belive that it is the F1 Hydraulic Pump Electric Motor.

 

Do you have access to a clamp-on ampere meter so you could verify currents in the circuit?

 

Negative. No, I do not. I may need get one. Thanks!

 

A decent clamp-on DC amp meter should cost less than 1 hr of Ferrari mechanic time.

 

You may have difficulty finding a section of pump wiring to "clamp". You can buy ammeters which plug into fuseholders (and use the exiting fuse). i.e. hands off operation. Unfortunately , the cheaper ones only go up to 20amps and may not have a peak recording mode.

 

Problem solved with X152 relay and A30 fuse.

I didn't need to replace the F1 system pump motor.

Thanks for you help!!

 

Doesn't make sense, but that's Ferrari's for you