TSB: MERCEDES BENZ AMG C43, AMG C63, AMG C63 S, AMG C63S, AMG E43, AMG E53, AMG E63S, AMG S63, AMG S65, C180, C190, C200, C220, C250, C250 D, C300, C300 4MATIC, C350, C350E, C400, C450, C63S AMG, E300, E350, E400, E43 AMG, E450, E550, S450, S550, S550E, S560, S600, S63, S63 AMG 4MATIC, S65 AMG (2015–2019)
Bulletin LI82-85-P-069789 — May 20, 2019
Bulletin Details
| Bulletin ID | LI82-85-P-069789 |
| Manufacturer | MERCEDES BENZ |
| Models | AMG C43, AMG C63, AMG C63 S, AMG C63S, AMG E43, AMG E53, AMG E63S, AMG S63, AMG S65, C180, C190, C200, C220, C250, C250 D, C300, C300 4MATIC, C350, C350E, C400, C450, C63S AMG, E300, E350, E400, E43 AMG, E450, E550, S450, S550, S550E, S560, S600, S63, S63 AMG 4MATIC, S65 AMG |
| Model Years | 2015–2019 |
| Date Issued | May 20, 2019 |
| Date Added to NHTSA | July 8, 2019 |
| Component | ELECTRICAL SYSTEM:SOFTWARE |
| Vehicles Affected | 80 combinations |
What is a TSB?
A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.
If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.
Summary
NTG 5.5 head unit - Browser shows "Fault during authentication" message
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| MERCEDES-BENZ | AMG C43 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 S | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG E53 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG E63S | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S63 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350E | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E300 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E450 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S450 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S560 | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S65 AMG | 2019 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C43 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63S | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG E63S | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S63 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C250 D | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 4MATIC | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350E | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E300 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E400 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E43 AMG | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S450 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S550 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S560 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S65 AMG | 2018 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C43 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG E43 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S63 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S65 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350E | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C450 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C63S AMG | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E300 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E350 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E400 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | E550 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S550 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S550E | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S600 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S65 AMG | 2017 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C43 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S63 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S65 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C190 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C250 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350E | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C450 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C63S AMG | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S550 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S600 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 AMG 4MATIC | 2016 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG C63 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S63 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | AMG S65 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C180 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C190 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C200 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C220 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C250 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C300 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C350 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C400 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | C63S AMG | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S550 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S600 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
| MERCEDES-BENZ | S63 AMG 4MATIC | 2015 | 118000 ELECTRICAL SYSTEM:SOFTWARE |
Related MERCEDES BENZ Recalls
What Should You Do?
If your vehicle is affected by this TSB, contact your authorized MERCEDES BENZ dealer. Bring this bulletin ID (LI82-85-P-069789) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.
Frequently Asked Questions
A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.
If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.
Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.
This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.