so i went to the dealership today

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Jun 16, 2009 | 11:12 PM

dixon

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i recently had the tcu unplugged from my car because it was causing the radio to skip and make a loud fuzzy distorted sound every now and then...it fixed the problem but then the sos call malfuntion warning came up on the screen so i had em put a different tcu in but now my radio is acting up again but the sos warning is gone now.....now they say i need to replace the whole tcu unit because its most likely faulty and its going to cause other things in my car to screw up and i'll get warnings for my traction control and my memory seats wont work properly etc etc....i was just wondering does this sound right? cuz it doesnt seem like ive had ne other warnings pop up and everything seems fine when i had the tcu unplugged....its guna cost over 1000 bux to replace teh unit so i thought id get some opinions before i made my decision, thanks in advance for any help!

Jun 17, 2009 | 05:50 AM

theXman

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From: Jersey

My Ride: 2004 530i

Model Year: 2004

You should find another dealer and get a 2nd opinion.

Jun 17, 2009 | 09:04 AM

advancedlogic

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From: Encino, CA

My Ride: 04 545i - Titanium Silver/Black, Sport pkg, Comfort Seats w/ Lumbar, Premium Sound, power rear sunshade, Adaptive Xenon Headlights, Steptronic, Park Distance Control, Fold down rear seats w/ski bag, Aux jack, 6-disk changer, puddle lamps... Engine: Custom Remus cat-back exhaust w/chrome square tips, K&N Air Filter, Charcoal Filter Removed, Sprint Booster :-), 50/50 mix of 91+100 Octane, EuroRev ECU Remap (coming soon lol), Dinan High-Flow Throttle Body (coming soon...maybe lol) Interior: Portable Sirius Stilletto 100 w/car kit, Garmin Nuvi 680 mounted below rear-view mirror, LCI-style I-drive knob, Dark Poplar Center Dashboard Trim. Exterior: E60 forum clings, 5% rear tint, ACS roof spoiler (painted black for distinct look against limo tint), ACS trunk spoiler, ACS add-on front spoiler and rear apron (awaiting installation), "18 Black Staggered BeBeS Style OER (emergency replacement for cracked sport 124 rims), black kidney grill, white accessory lighting (including license and trunk lamps), Angel-eye upgrade, AIB xenon-matched fog lamps, AIB V3's on order, red rear reflectors

Quote:

Originally Posted by dixon' post='914199' date='Jun 17 2009, 12:12 AM

Welcome to the forums! Lets get some additional info from you first. What's the year/build date of your E60? Where are you located? Have you performed any angel eye upgrades or other lighting system mods? Any other electrical system mods? Are you experiencing problems with AM/FM/HD or SAT radio? Have you tinted your windows? The reason why this info is important is to determine if you have an earlier TCU, as some units had problems. Angel eye upgrades on pre-lci cars have been known to cause radio distortion issues. One way to check is to keep the lights off if you don't have DRL's. If you have DRL's and after-market angel eyes, unplug the angel eyes (PITA, I know). AM is far more susceptable to electrical distortion, but that doesn't mean FM is completely off the hook. As far as tint goes, the radio antenna wires (along with the remote transmitter and others), are embedded within the rear window. Certain tints containing metals or certain other RF absorbant/scattering materials can be problematic. Tint removal can damage the antenna wires. There are a few things to check for. Keep us posted!