MSD80 or MSD81

JayD · 02-09-2009, 10:00 AM

I have an 08 335 with a production date of 06/08. I thought after March of 08 all MSD units were the new 81 version. I recently got a copy of a diagnostic report from my dealer that seems to show that my car has MSD80. Under the listing of control module functions the report shows MSD80. The progman version E89X-08-03-540 equates to either 30.0.1 or 30.0.2 based on previous posts that I searched. I have not had any software updates (other than factory alarm programming) and I dont seem to have the infamous turbo lag. Could the Diagnostic report be wrong on the DME version? Quite confused.

shaddai · 02-09-2009, 12:29 PM

From the big-a sticky in the tuning section:

Put the last seven in at RealOEM.com. Click Browse Parts after putting in your vin, then go to section 12 (Engine Electrical System) then to 12 10 (Control Unit). You will see at least one MSD8x unit, possibly both. Click on one and see if it says part numbers, or if it says "No parts found matching your car."

However, given your production date, you've got to be MSD81.

Kruz · 02-09-2009, 12:41 PM

HUh..just did that and my 7/07 E90 shows both DMEs and both with parts?

Only difference was the 80 had two part #1s...
No. Description Supplement Qty From Up To Part Number Price Notes
01 RMFD BASIC CONTROL UNIT DME MSD80 1 09/2007 12147575876
01 RMFD BASIC CONTROL UNIT DME MSD80 1 03/2008 12147583333

undecided · 02-09-2009, 02:39 PM

Quote:

Originally Posted by shaddai

From the big-a sticky in the tuning section:

Put the last seven in at RealOEM.com. Click Browse Parts after putting in your vin, then go to section 12 (Engine Electrical System) then to 12 10 (Control Unit). You will see at least one MSD8x unit, possibly both. Click on one and see if it says part numbers, or if it says "No parts found matching your car."

However, given your production date, you've got to be MSD81.

Which makes sense. They should be compatible.

shaddai · 02-09-2009, 05:20 PM

Y'all clicked "Search" after entering the last seven digits of your VIN? It should fill out the model progression for you and show you details about what batch your car was in right above the "Browse Parts" button. If not, then you did something wrong.

The MSD units should not be interchangeable, to my knowledge. I'd love to put an MSD80 in my car if that were the case.

undecided · 02-09-2009, 08:09 PM

Quote:

Originally Posted by shaddai

Y'all clicked "Search" after entering the last seven digits of your VIN? It should fill out the model progression for you and show you details about what batch your car was in right above the "Browse Parts" button. If not, then you did something wrong.

The MSD units should not be interchangeable, to my knowledge. I'd love to put an MSD80 in my car if that were the case.

So I guess, they are interchangeable.

Kruz · 02-10-2009, 08:50 AM

Me too

wilkoal · 02-11-2009, 09:25 AM

Quote:

Originally Posted by shaddai

From the big-a sticky in the tuning section:

Put the last seven in at RealOEM.com. Click Browse Parts after putting in your vin, then go to section 12 (Engine Electrical System) then to 12 10 (Control Unit). You will see at least one MSD8x unit, possibly both. Click on one and see if it says part numbers, or if it says "No parts found matching your car."

However, given your production date, you've got to be MSD81.

It works! great info Shaddai!

Unky · 07-11-2009, 10:35 AM

Quote:

Originally Posted by shaddai

I'd love to put an MSD80 in my car if that were the case.

Is this because of the history of problems with MSD81 or is it for some other reason?

02-09-2009, 10:00 AM	#1
JayD Private First Class 46 Rep 195 Posts Drives: 08 335i Join Date: May 2008 Location: upper mid-west iTrader: (0)	MSD80 or MSD81 - which do I have I have an 08 335 with a production date of 06/08. I thought after March of 08 all MSD units were the new 81 version. I recently got a copy of a diagnostic report from my dealer that seems to show that my car has MSD80. Under the listing of control module functions the report shows MSD80. The progman version E89X-08-03-540 equates to either 30.0.1 or 30.0.2 based on previous posts that I searched. I have not had any software updates (other than factory alarm programming) and I dont seem to have the infamous turbo lag. Could the Diagnostic report be wrong on the DME version? Quite confused.
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02-09-2009, 12:29 PM	#2
shaddai former N54 owner 11 Rep 607 Posts Drives: 2008 Audi S4 DTM Join Date: Mar 2008 Location: Bay Area, CA iTrader: (0) Garage List 2008 335i [0.00]	From the big-a sticky in the tuning section: Put the last seven in at RealOEM.com. Click Browse Parts after putting in your vin, then go to section 12 (Engine Electrical System) then to 12 10 (Control Unit). You will see at least one MSD8x unit, possibly both. Click on one and see if it says part numbers, or if it says "No parts found matching your car." However, given your production date, you've got to be MSD81. __________________ +lemon
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02-09-2009, 12:41 PM	#3
Kruz Major 20 Rep 1,077 Posts Drives: 335xi Join Date: Jun 2007 Location: Chicagoland iTrader: (4) Garage List My garage spot [0.00] 07/07 BMW 335xi [0.00] 2001 Honda CBR600F4i [0.00] 2007 Husqvarna SM610 [0.00] 2004 Chevy Tahoe Z71 [0.00] 2005 Harley Davidso ... [0.00] 2007.9 335xi [0.00]	HUh..just did that and my 7/07 E90 shows both DMEs and both with parts? Only difference was the 80 had two part #1s... No. Description Supplement Qty From Up To Part Number Price Notes 01 RMFD BASIC CONTROL UNIT DME MSD80 1 09/2007 12147575876 01 RMFD BASIC CONTROL UNIT DME MSD80 1 03/2008 12147583333 __________________ 07/07 E90 335xi SG Black Dakota\|Alum\|ZSP\|2AB\|ZPP\|ZCW\|Nav\|CA\|6FL\|PDC\|Blackli nes\|3M Summers: 235/40/18 265/35/18 Hankook Ventus V12 on VMR 701s A/S: 225/40/18 255/35/18 Pirelli PZero Nero M+S on OEM 162s
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02-09-2009, 05:20 PM	#5
shaddai former N54 owner 11 Rep 607 Posts Drives: 2008 Audi S4 DTM Join Date: Mar 2008 Location: Bay Area, CA iTrader: (0) Garage List 2008 335i [0.00]	Y'all clicked "Search" after entering the last seven digits of your VIN? It should fill out the model progression for you and show you details about what batch your car was in right above the "Browse Parts" button. If not, then you did something wrong. The MSD units should not be interchangeable, to my knowledge. I'd love to put an MSD80 in my car if that were the case. __________________ +lemon
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02-10-2009, 08:50 AM	#7
Kruz Major 20 Rep 1,077 Posts Drives: 335xi Join Date: Jun 2007 Location: Chicagoland iTrader: (4) Garage List My garage spot [0.00] 07/07 BMW 335xi [0.00] 2001 Honda CBR600F4i [0.00] 2007 Husqvarna SM610 [0.00] 2004 Chevy Tahoe Z71 [0.00] 2005 Harley Davidso ... [0.00] 2007.9 335xi [0.00]	Me too __________________ 07/07 E90 335xi SG Black Dakota\|Alum\|ZSP\|2AB\|ZPP\|ZCW\|Nav\|CA\|6FL\|PDC\|Blackli nes\|3M Summers: 235/40/18 265/35/18 Hankook Ventus V12 on VMR 701s A/S: 225/40/18 255/35/18 Pirelli PZero Nero M+S on OEM 162s
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