drzed400sm
08-01-2019, 05:25 PM
Hello all I've been browsing the forum for a little while looking through things as I had been searching for a BMW. I recently found a 1997 740IL. The person listed it on craigslist for 750 dollars, he didn't know what he had since he was a classic mustang guy and actually only listed it as a 740I, but when i went to do a test drive saw it was a 740IL and it had the dinan badge on it. The car needed somethings i've replaced(new brakes/tires, fan clutch and fan, needs a new radiator(Current has a couple holes plugged with JB weld from where i assume the old fan went kaboom) The interior needs some work(mostly trim pieces, the rear sunshade needs fixed but im tackling that this weekend).
What i noticed is that it had a DSP unit, but it looks like its unplugged sitting in the back and all speakers removed(I have now installed aftermarket speakers and 2 15 inch eclipse subs that my dads had since around 99). Now my question is I believe i have a bum MID. I've checked the voltage on the pins and im getting all the correct voltages but my mid wont turn on. I've tried the mid turn on test as described here in a few threads but no luck. Could this be because the DSP was removed? I thought i read that without the DSP the mid should pick up that its not there and work as a non-DSP mid but im unsure if the mid is just broke.
Also for those curious my local big time BMW dealer was able to confirm that my dinan badge was legit(had to pay out the ass for them to confirm) I believe it has a stage 2 engine tune and a transmission tune and something else but im currently at work and not looking at the paperwork. Im currently loving this car since i've been a fanboy of BMW for awhile now, and I know that its something small but i absolutely love the MID display and having one working and it kind of sucks that its just a blank display. So any help with diagnosing this would be appreciated. Overall though i feel like i got a good deal on it, what do you guys think?
Btw sorry for grammar and the wall of text.
What i noticed is that it had a DSP unit, but it looks like its unplugged sitting in the back and all speakers removed(I have now installed aftermarket speakers and 2 15 inch eclipse subs that my dads had since around 99). Now my question is I believe i have a bum MID. I've checked the voltage on the pins and im getting all the correct voltages but my mid wont turn on. I've tried the mid turn on test as described here in a few threads but no luck. Could this be because the DSP was removed? I thought i read that without the DSP the mid should pick up that its not there and work as a non-DSP mid but im unsure if the mid is just broke.
Also for those curious my local big time BMW dealer was able to confirm that my dinan badge was legit(had to pay out the ass for them to confirm) I believe it has a stage 2 engine tune and a transmission tune and something else but im currently at work and not looking at the paperwork. Im currently loving this car since i've been a fanboy of BMW for awhile now, and I know that its something small but i absolutely love the MID display and having one working and it kind of sucks that its just a blank display. So any help with diagnosing this would be appreciated. Overall though i feel like i got a good deal on it, what do you guys think?
Btw sorry for grammar and the wall of text.