Thread: 2016 Discovery 4 SDV6 - broken crankshaft?

Originally Posted by Graeme

MY10 RRS still had the 3.6 but presumably a Bosch ecu like the MY10 2.7 D4 rather then the previous Siemens to work with the new MY10 specification canbus. The MY10 L322 also had the 3.6 and the new canbus so that ecu might also be usable.

I just checked with GAP and it appears my MY10 RRS is Siemens, looking at listings im seeing l322 and s320 tdv6 as bosch too, it seems it might not be so clear cut, and maybe both would work.

5ws40725d-t AH4Q12A650SAD only 80 pound on ebay ! (its also listed as MY10 L322) RANGE ROVER L322 3.6 DIESEL V8 ENGINE CONTROL MODULE UNIT ECU 2010 AH4Q12A650SAD | eBay

also full ecu/dash/key sets available (no coding !) (mind you if i was doing this i definately still want access to GAP or Nanocom)

these ecu are actually pretty common and cheap !


The other thing I was thinking about, if i was in this situation, is id try just putting in a new crank, but now im thinking it might not be just that as the cam would have stopped spinning in sync likely and crashed some valves... but still might be not to big a job for home mechanic.

Modifying the Siemens ecu to use the new canbus must have been a lesser task than getting the Bosch ecu to support the twin turbo with inlet port disabling 3.6 for just 1 year of production. The 3.6 operates quite differently to the 3.0 TDV6 and 4.4 TDV8 with their primary and secondary turbos which use the same Bosch ecu.

Originally Posted by Graeme

Modifying the Siemens ecu to use the new canbus must have been a lesser task than getting the Bosch ecu to support the twin turbo with inlet port disabling 3.6 for just 1 year of production. The 3.6 operates quite differently to the 3.0 TDV6 and 4.4 TDV8 with their primary and secondary turbos which use the same Bosch ecu.

Hey Grahame,

Won't the injectors be matched to the ECU aswell. Isn't there Bosch and Siemens injectors? So one might have to change the injectors over so the trim codes will work too

When people have put in a 3.6TDV8 into a Disco they have realised that it is too hard to get all the TDV8 to talk to the Disco electronics and electrics so have used a donor RRS TDV8 and transferred the RRS electronics and electrics (wiring loom and ECUs, instruments etc) across to the Disco so the engine and ECUs still think they are in the RRS.

Originally Posted by 101RRS

When people have put in a 3.6TDV8 into a Disco they have realised that it is too hard to get all the TDV8 to talk to the Disco electronics and electrics so have used a donor RRS TDV8 and transferred the RRS electronics and electrics (wiring loom and ECUs, instruments etc) across to the Disco so the engine and ECUs still think they are in the RRS.

Yeah but will Siemens ecu work with Bosch injectors and the other way around?

Originally Posted by josh.huber

Yeah but will Siemens ecu work with Bosch injectors and the other way around?

Shouldn't really matter but being a Landrover it does.

Originally Posted by loanrangie

Shouldn't really matter but being a Landrover it does.

In other vehicle types the fuelling system is generally ecu and injector matched.. Sometimes sensors aswell

Originally Posted by josh.huber

Yeah but will Siemens ecu work with Bosch injectors and the other way around?

I got no idea what you are talking about - when the conversion was done the entire systems from the RRS were moved to the Disco so no mismatch of ecus and injectors.