L322 Battery Hard reset

Ruby Range

Well-Known Member

Posts

338

Location

Sandwich Kent

• Jan 26, 2020

• #1

Just a quick thought for the early M62 engine 4.4 V8. A lot of people try a battery reset on the L322 trying to cure the odd problem. Battery terminals off and then jumper wire between pos and negative to drain all power out of Ecu and reset it to factory spec. The early BMW models won’t do this as they have a different set of electronics and ecu.

 

gstuart

D3 Grandad

Full Member

Posts

30,790

Location

Kent

• Jan 26, 2020

• #2

Hiya

Indeed and hope u don’t mind adding for any newbies , to ensure u only touch the battery leads together and not the battery terminals

I’ll get my coat, lol

 

Ruby Range

Well-Known Member

Posts

338

Location

Sandwich Kent

• Jan 26, 2020

• #3

Coat fire extinguisher and don’t bother to resuscitate

 

kermit_rr

Very

Full Member

Posts

33,867

Location

North Shropshire

• Jan 26, 2020

• #4

I was about to say that.. connect the terminals and you'll get some lovely pops and bangs, maybe even an exploded battery
Connect the leads together and you'll get.. connected leads!