Cell Phone/MMI(R) - Sporadically Inoperative
91 Phone preparation inoperative or MMI sporadically inoperative
91 11 81
2018588/7
February 3, 2011.
Supersedes Technical DIAGNOSIS AND REPAIR Group 91 number 10 - 77 dated December 22, 2010 for reasons listed below.
AFFECTED VEHICLES
CONDITION
The customer may report the following issues with the Telephone Transceiver R-36 in their vehicle:
^ Customers mobile phone no longer connects via Bluetooth. A MMI Software update or Telephone Transceiver replacement was not performed
prior to this condition.
^ MMI displays message Telephone not available.
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^ The MMI system is not responding (black display).
Tip: Multimedia Control Head E380 and all MOST ring modules, except R-36, are ruled out as the root cause.
^ The customer may also report that audio output has interference (cutting out, crackling noises) in various audio sources, in which the Telephone
Transceiver may be the root cause.
Tip: Also check TSB 2015528 and TSB 2014375.
TECHNICAL BACKGROUND
Incompatible cell phone or software-related issue of Telephone Transceiver R-36.
PRODUCTION SOLUTION
New software for Telephone Transceiver R-36.
SERVICE
Tip: In case scan tool communication can't be established, loop the optical connection of R-36. If the scan tool communication can be re-established,
replace the telephone transceiver with part number 4F0 910336 HX and proceed to Section 2.
Before considering a software update:
1. Verify that the customer cell phone is compatible to the vehicle. The phone preparation database can be found on
http://www.audiusa.com/audi/us/en2/experience/technology/mpp_database.html or select Audi Lifestyle -> Technology -> Mobile phone preparation
on www.audiusa.com.
If the customer's cell phone compatibility is not confirmed:
^ Verify that the condition is also applicable with another phone (approved).
^ Determine if the customer phone functions or malfunctions in another vehicle.
2. If the universal phone preparation is identified as the root cause for the condition, verify whether RVU CQ/91D8 is valid for this vehicle and
whether it has been performed. If the RVU is valid for the vehicle and has not yet been performed, claim replacements of R-36 and the MMI
software update under this RVU. Refer to Technical DIAGNOSIS AND REPAIR 2018510 for additional information.
Otherwise, proceed to Section 1.
Section 1. Verifying HW identification of the Telephone Transceiver R-36.
1. Press and hold the SETUP button, and then press and hold the RETURN button. Hold both buttons down until the red update screen appears.
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2. Select Handyvorb2 to verify Hardware and Software version of the phone preparation.
^ If HW-Index: H00 is displayed, replace the Telephone Transceiver R-36 with part number 4F0 910 336 HX. (See Workshop Manual, Electrical
system >> Rep. Gr 91 >> Infotainment, telephone system >> Removing and installing telephone transmitter and receiver unit-R36.). Proceed to
Section 2
^ If SW-Index: 0700 and HW-Index does not read H00, return to the normal display by pressing the RETURN button and proceed to Section 2.
Section 2. MMI System Software Update
Refer to Technical DIAGNOSIS AND REPAIR 2019334 for directions to perform the update.
Tip: If the Telephone Transceiver R-36 was replaced with part number 4F0 910 336 HX, the CD#1 software and firmware update as described in
TSB 2019334 is not necessary. In this case, proceed directly to the final software update with CD#2 (4F0 998 961).
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WARRANTY
REQUIRED PARTS AND TOOLS
ADDITIONAL INFORMATION
The following Technical DIAGNOSIS AND REPAIR(s) may be valid to determine the correct service solution due to similar conditions:
^ TSB 2015528, 91 MMI: Sporadic cracking noises, audio dropouts or completely inoperative
^ TSB 2014375, 91 CD skips periodically or CD changer causes MMI system malfunction
^ TSB 2018510, RVU - Repairing telephone preparation (CQ / 91D8)
The following Technical DIAGNOSIS AND REPAIR is necessary to complete this procedure:
^ TSB 2019334, 91 MMI High System software update (Zug 864 - update) procedure
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
