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Posted on September 14, 2024September 14, 2024 by u-obd — Leave a comment

How to repair the Mercedes-Benz NTG4.5, NTG4.7 Head unit

Mercedes-Benz COMAND APS NTG4.5, NTG4.7 Head unit mainly install on the Mercedes Vehicle from 2012 to 2015. Fit on most model including: W166, W204, W212, W207, W218, W172, W231, W246, W463…

• C-Class W204 C250 C300 C350 C63
• E Class W212 E350 E550 E63
• B-Class W246
• CLS-Class W218
• SL Class W231 SL550 SL63 SL65
• W166
• W176
• W246
• W463
• W207
• W218

Mercedes-Benz COMAND Infotainment NTG4.5 Head unit repair tools

How to repair the Mercedes-Benz NTG4.5 NTG4.7 Head unit

Mercedes-Benz HU45 HU47 NTG4.7 Head unit repair tools

Mercedes-Benz COMAND APS Infotainment system NTG4.5 NTG4.7 Repair tools repair tutorials repair solutions

Mercedes-Benz COMAND Infotainment system NTG4.5 NTG4.7 head unit repair adapter

Mercedes-Benz COMAND Infotainment system NTG4.5 NTG4.7 head unit repair tools

When try repair the NTG4.5 or NTG4.7 Head unit, can use the NTG4.5, NTG4.7 Test bench to connect the head unit and dispaly try to start the system on bench, check the head unit electric current. If no current or less than 0.3 amp, may need the power supply circuit.

If the electric current less than 1 amp, may the data crash in the emmc chip. NTG4.5 Head unit Multimedia with 1GB eMMC chip (TOSSP48 Package type). NTG4.7 Head unit Multimedia board with 2GB eMMC chip (BGA Package type).

Mercedes-Benz NTG4.5 NTG4.7 Head unit repair tools emmc chip programming adapter

To program this two types of the chip, we have an dedicated adapter to program them while they are on circuit board directly, No need desoldering remove the chip.

Mercedes Benz NTG4.7 NTG4.5 Programming adapter repair tools sockets

Mercedes Benz NTG4.5 NTG4.7 Head unit repair tools programming adapter

Another flash chip 2S9JL… Should also be programmed if the head unit not boot after programmed the emmc chip. this flash chip have to remove from the circuit board put into the sockets and programmed by programmer.

Posted on May 12, 2021May 12, 2021 by u-obd — Leave a comment

BMW N46 Engine DME 7603575 BOSCH MEV 17.2.1 BOSCH MEV 17-21 N46 B20B DME repair guide repair tutorials

BMW N46 Engine 0261S05947, 0261S06902, 7 603 575, BOSCH MEV 17.2.1, BOSCH MEV 17-21, MCU TC1796, DME repair guide, repair information.

Posted on September 23, 2020September 23, 2020 by u-obd — Leave a comment

BMW EMF EPB electronic parking brake module repair guide repair solutions

The highest of the EMF module components is the Motor control relay and the motor

Relay: https://www.u-obd.com/product/g8nd-2uk/

Relay: https://www.u-obd.com/product/g8nd-2s-12vdc/

Motor: https://www.u-obd.com/product/bmw-autohold-motor/

other components such as power regulator, CAN communication transceiver, Motor driver chip, also need

inspect carefully.

Posted on November 21, 2018June 16, 2023 by u-obd — Leave a comment

How to repair BMW F18 N52 Engine MSV90 DME BSD failure oil measurement not possible

BMW N52 Engine MSV90 DME usually report error like oil measure not possible, fault code: CD9304- BSD communication fault. and the fault code can not be deleted.

First step is to check the cables, exclude to cables failure. measure the BSD data line voltage. If all the cables in good condition, check the DME.

If confirmed the DME failure, it can be repaired, not very complicated, a chip inside damaged. in this article we will introduce how to repair it

How to repair BMW BSD failure Oil measurement failure

BMW F18 MSV90 DME BSD failure oil measurement failure repair tutorials

BMW F18 N52 MSV90 DME BSD failure oil measurement failure

BMW F18 N52 Engine MSV90 DME Oil measurement exit work failure repair solution

How to repair BMW N52 Engine MSV90 DME BSD failure

BMW N52 Engine DME MSV90 BSD failure repair solution

BMW N52 Engine MSV90 DME BSD failure repair solution

BMW F18 N52 Engine DME BSD failure repair

How to repair BMW F18 MSV90 DME oil measurement not work failure

BMW BSD failure oil measurement failure repair solution

Better not open this ECU housing, because the glue is very tight, hard to open, drill a small hole on the back of the DME, the postion please refer the picture above, use a small Nozzle hot air gun to remove the chip – TJA1020, Should be very careful, Change a new chip, clean the dust, the seal this hole, this repair work is done.

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Posted on November 16, 2018November 16, 2018 by u-obd — Leave a comment

AUDI A4 TT VOLKSWAGEN PASSAT GOLF BEETLE JETTA 1.8T BOSCH ME7.5 ECU repair guideline

AUDI A4 TT Volkswagen Jetta Beetle Golf 1.8T engine BOSCH ME7.5 ECU repair solutions

AUDI A4 TT PASSAT GOLF BEETLE JETTA 1.8T BOSCH ME7.5 ECU repair guideline

Posted on October 31, 2018 by u-obd — Leave a comment

How to repair Volkswagen ECU BOSCH MED17.5 Motronic for 2.0T Engine

VAG MED17.5 ECU repair solution repair guideline repair kit

How to repair Volkswagen ECU MED17.5 Motronic for 2.0T Engine

Per many friend request, Here I made the Volkswagen 2.0 T Engine BOSCH MED17.5 Motronic ECU repair guideline IC chip function illustration, it’s may help some friend to repair this ECU.

In many Case the ECU can be repair by change of the IC chips, hopefully it will make sense.

Gifts of rose, hand there are lingering fragrance.

If you like it, please share to more people who are in need. for more repair guidelines tutorials please register members on my store, I will share with the members via Emails,

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Posted on March 25, 2018March 25, 2018 by u-obd — Leave a comment

AUDI A6 Q5 ESL/ ELV Module J518 repair solution & repair kits

AUDI steer column Module – J518 is easy been damaged, it’s a common problem, when the J518 Module is failure, the following problems will occurred when insert the key:

Steer column will not be unlocked;
Car will not start;
Dashboard can not be light up.

But the key can rotate normally.

AUDI J518 Modules

AUDI J518 repair kit

Repair solutions:

dismantle the J518 Module form the car, open it, use XPROG read the MCU, there are three kind of MCU Model exist:

— MC9S12DG256CFUE OL01Y;

— MC9S12DG128CFUE 1L59W;

— MC9S12DG128CFU 3L40K;

MCU for AUDI J518 Module

Read both the flash and eeprom dump from the MCU and saved on desktop, the XPROG wiring diagram:

XPROG Read J518 MCU

Buy new MCU from www.u-obd.com, as the MCU is new and blank, use the XPROG write the dump been saved in the first step in to the new MCU, then solder back on the J518 circuit board.
Change the Relays Model No: ACT512;
Better change the micro switch and the ELV motor as well.
If the J518 circuit board is burned or badly damaged, or don’t want to do time -comsuming soldering work, better change a new blank circuit board.

Attention: When change the MCU, Desoldering the MCU, please mind the small resistors beside the MCU, The hot air gun may damaged the resistor, please be carful.

if the MCU is totally damaged and can not read the dump out, ask some one to share a dump, after write into the new MCU or new blank circuit board, use device to do adapting work.

Thanks for reading! If you like it please share to more people in need.

— Steve Powell

UNIQUE AUTO ELECTRONIC, INC.

www.u-obd.com

Skype: live:u-obd

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Posted on January 15, 2018 by u-obd — Leave a comment

SUBARU Forester Smart key adapting method for all key lost

Preface:

We all knows SUBARU spare parts is very expensive, all key lost will cost a lot, here we share the SUBARU Forester key

adapting method for all key lost.

Abstract:

SUBARU Smart key all key lost key adaption have two common methods:

1. Disassemble the SMT Main ECU, Use AD900 programmer to write data into Toyota smart key, it can directly start the car, No need adapting on the car again, but must use AD smart key.

2. Disassemble the SMT Main ECU, immobilizer(ESL/ELV), Write initialization data, then study the key on the car.

Here we share the second method, SUBARU Forester use 5290 smart key, Year 2013, No immobilizer, disassemble the SMT Main ECU and ELV Write initialization data and study the key.

Process:

1. Get the ELV(below steer column), disassemble the ELV module, find the 8 PIN EEPROM on the circuit board, Model No. : 93c46.

Desoldering the 93c46, use programmer and adapter read the data, make a backup first then change the code shown as below picture.

-keep the Red marked code code the same, others all change to F, When dump revised, use programmer and adapter write back to 93c46 eeprom, and solder back to the circuit board.

2. Disassemble the SMT Smart ECU(back side of the A column of the car), it’s appearance is the same as Toyota except the LOGO, disassemble the shell find the 8 PIN eeprom near the CPU, EEPROM Model No. : 93C86. Disassemble the 93c86, Write initialization data, assemble back to the car, if without error the dashboard could be light up.

3. Use Key programmer add new keys directly. Use K518, X300, or I80 key programmer, connect the car OBD interface, select SUBARU, then XV smart system, direct add new key, all down, after the keys added, no need sync, directly start the car.

Posted on January 9, 2018 by u-obd — Leave a comment

Volkswagen 35xx instrument immo key adapting tutorials all key lost

Volkswagen 35xx instruments cluster immo(New Jetta, New Santana, Skoda, volkswagen family the fourth generation immo manufactured after year 2013 ) all key lost adapting is an acknowledged head burn problems, many people try and then failed, here I got a new method to solve this tough problem, adapting new cars for volkswagen NEC 35xx instrument cluster all key lost.

Abstract: because the volkswagen encrypt the 35xx instrument, result in the impossible to get the immo code from the eeprom without a key, when all key lost we can not adapting new key in term of the common methods. but we can get a alternative instrument cluster unencrypted sorts such as 24c32, 24c64(smart sort), via online adaption, let the volkswagen server write the original 35xx instrument cluster data into the alternative instrument cluster 24c32 or 24c64, Ok, when this steps is down, we can use common methods to adapting 24c32 or 24c64 all key lost, because the alternative instrument cluster unencrypted, we can treat it as common all key lost case, when adapting work of 24c32 or 24c64 instrument cluster is down, we shifting back the 35xx instrument, all is down.

Devices & software needed: 35xx test cables, VCDS, VVDI2 Or K518, CN900, ODIS;

Process:

1. Use VCDS select the 25th column – immobilizer, advanced identification, read the 35xx instrument keys ID, record the ID (take picture or write down on a paper)

2. Change the instrument cluster 24c32 or 24c64, use the ODIS software online adapting. Select 25th column – immobilizer, adapting immobilizer, stoped before adapting keys, ESC.

3. Common methods adapting new keys for 24c32 or 24c64 instruments all key lost, manually input the keys ID we record on the first step. Use VVDI2 and 35xx testing cables to adapting 24c32 or 24c64 instrument keys on bench, there will be 6 steps, 1 to 5 steps, we follow it’s notification.

4. The sixth step: VVDI2 click read immobilizer data, then the interface will display VIN, CS code, PIN code etc, all the key position is FFFFFFFF, Blank. input the keys ID manually into the first and second key position. then click write immobilizer data, the two original car key ID already been write into the eeprom.

5. Click generate the distributor keys: select the car brands and models, then select the OEM keys, select generate key1 or key2, then click generate distributor keys, down.

6. change back the original 35xx instrument cluster directly, the two keys no need study, cause their ID is the same as ID in the 35xx instrument, no need study keys the car can start with the two keys.

Note: for fear the ABS code lost, better get the ECU and instrument adapting on bench, recommend buy the dedicated 35xx test cables, no need adapting on the car, decrease the risk of code lost.

Need 24c32 or 24c64 instrument cluster, please contact: u-obd@hotmail.com

Posted on October 27, 2017October 10, 2018 by u-obd — Leave a comment

Locksmith – Mercedes-Benz Car Model and It’s related Chassis No

Locksmith tutorials – Mercedes-Benz Car Model and It’s related Chassis No

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Many Automotive Locksmith didn’t know the relationship between the Car Model and the chassis No when they made keys. Here I’ll brief introduce their correspondence.

A series chassis No:

W168; W169B; W245.

C series chassis No:

W201(Year 1982); W202(Year 1994); W203(Year 2001); W204(Year 2007).

CL series chassis No:

W126; W140; W215; C216.

CLK series chassis No:

W208; W209.

CLS series chassis No:

C219.

E series chassis No:

W100(Year 1968); W114, W115(Year 1968); W123(Year 1976); W124(Year 1985); W210(Year 1995)； W211, W212(Year 2002).

G series chassis No:

W460; W461; W463.

GL series chassis No:

X164.

ML series chassis No:

W163; W164R; W251.

S series chassis No:

W116(Year 1971); W126(Year 1979); W140(Year 1991); W220(Year 1998); W221, W222(Year 2005); W240(Maybach)

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