FBH The end of the SAGA ? - Page 4

FrenchMike · 18th February 2010, 07:36

Quote:

Originally Posted by BigRuss

Just in the process of testing a faulty board, have found up to now 4 faulty resistors all of which have been covered in the white compound.

Both resistors below the left hand capacitor and 2 under the right hand capacitor but not the bottom 4.7K one, that one's fine. The two that have failed on the right show signs of overheating, but the two on the left look normal.

Looks like any of the components that have been covered may be suspect.

Russ

Hi,Russ

Forget overheating
Around the microprocessor,all the components work at very low power.
few milliwatts only.

Mike

ianw · 21st February 2010, 14:29

I there been following this thread for a while now and i think all the info that u guys give is brilliant . i recently bought an fbh 98570B tested it the car by earthing pin3 it started its cycle then cut out i found the fuel pump was not pumping.tested the pump off the car and it seemed to work.from the info from u wise ones igathered it is the pcb

i have since seen another fbh for sale and i am considering buying it bmw x5 e53 will the connectors be the same and will have to 12v+to pin1 thanx

tony_fry · 22nd February 2010, 17:30

Don't think the connectors will be the same Ian

Jules · 25th February 2010, 00:21

Mike can you apply your Magic out to sort the very common fault with Mk111 Satnav units. (ie LED staying on)

FrenchMike · 25th February 2010, 07:53

Quote:

Originally Posted by Jules

Mike can you apply your Magic out to sort the very common fault with Mk111 Satnav units. (ie LED staying on)

Hi,Jules

I don't know the satnav and i haven't one but why not:

I guess they become faulty following a flood ?

You can send me one, i will have a look,one never knows.

Mike

Jules · 25th February 2010, 08:05

No I don't mean mean flood damage unit's they are more often than not scrap.

Something corrupts the MK11/ Mk111 Flash memory/CPU if the Car Battery is removed less than 2 minutes after ignition switched off. (ie before Satnav has gone though it's shut down procedure)

Result is often that it will never shut down (LED stays on) and the PERM 12 Volts fed to it drains the Battery over 2 days (depending on Batt condition)

There you go ............a brief history.
If I send you a duff Mk111 this morning, can I collect it all repaired, this afternoon?

FrenchMike · 25th February 2010, 09:43

Quote:

Originally Posted by Jules

No I don't mean mean flood damage unit's they are more often than not scrap.

Something corrupts the MK11/ Mk111 Flash memory/CPU if the Car Battery is removed less than 2 minutes after ignition switched off. (ie before Satnav has gone though it's shut down procedure)

Result is often that it will never shut down (LED stays on) and the PERM 12 Volts fed to it drains the Battery over 2 days (depending on Batt condition)

There you go ............a brief history.
If I send you a duff Mk111 this morning, can I collect it all repaired, this afternoon?

Well,if that involves programming tools,it is much more difficult !
I am afraid not to be ready for this afternoon.

Is there a Kbus link problem too ?

Mike

foxspeed · 25th February 2010, 15:58

purchased a bmw x5 thermo top the other day to use as spares to fix my fbh - the unit was off a 2005 x5 - the circuit board still has that white silicone on

ianw · 25th February 2010, 18:45

hi there fox speed are the connections the same as the rover fbh and what is the difference between the two units?

foxspeed · 25th February 2010, 20:35

Quote:

Originally Posted by ianw

hi there fox speed are the connections the same as the rover fbh and what is the difference between the two units?

only slight differences

4 screws hold the fan unit on (5 on older rover thermo top)
glow plug fitting and retaining clip different
circuit baord looks the same - not sure on the "programming"

connections all look the same

i swapped over combustion chambers and glow plug (after de-coking them)

works a treat now

21st February 2010, 14:29	#32
ianw Regular poster mg zt cdti+ x power grey Join Date: Jun 2007 Location: st helens Posts: 55 Thanks: 0 Thanked 0 Times in 0 Posts	fbh problem I there been following this thread for a while now and i think all the info that u guys give is brilliant . i recently bought an fbh 98570B tested it the car by earthing pin3 it started its cycle then cut out i found the fuel pump was not pumping.tested the pump off the car and it seemed to work.from the info from u wise ones igathered it is the pcb i have since seen another fbh for sale and i am considering buying it bmw x5 e53 will the connectors be the same and will have to 12v+to pin1 thanx

22nd February 2010, 17:30	#33
tony_fry I really should get out more....... BMW I3 Join Date: Nov 2006 Location: South East London Posts: 2,224 Thanks: 31 Thanked 77 Times in 61 Posts	Don't think the connectors will be the same Ian __________________ Regards Tony Membership No 135

25th February 2010, 00:21	#34
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Mike can you apply your Magic out to sort the very common fault with Mk111 Satnav units. (ie LED staying on) __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

25th February 2010, 08:05	#36
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	No I don't mean mean flood damage unit's they are more often than not scrap. Something corrupts the MK11/ Mk111 Flash memory/CPU if the Car Battery is removed less than 2 minutes after ignition switched off. (ie before Satnav has gone though it's shut down procedure) Result is often that it will never shut down (LED stays on) and the PERM 12 Volts fed to it drains the Battery over 2 days (depending on Batt condition) There you go ............a brief history. If I send you a duff Mk111 this morning, can I collect it all repaired, this afternoon? __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

25th February 2010, 18:45	#39
ianw Regular poster mg zt cdti+ x power grey Join Date: Jun 2007 Location: st helens Posts: 55 Thanks: 0 Thanked 0 Times in 0 Posts	bmw x5 fbh hi there fox speed are the connections the same as the rover fbh and what is the difference between the two units?

25th February 2010, 15:58	#38
foxspeed Loves to post rover 75cdt Join Date: Jan 2010 Location: secret airfield near Leeds Posts: 294 Thanks: 0 Thanked 0 Times in 0 Posts	purchased a bmw x5 thermo top the other day to use as spares to fix my fbh - the unit was off a 2005 x5 - the circuit board still has that white silicone on