# Service bulletin LI54 10\-P\-068383 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10151944 - Published by NHTSA: 2018\-12\-17 - Manufacturer's number: LI54 10\-P\-068383 - Manufacturer's date: 2018\-07\-11 - NHTSA component: ELECTRICAL SYSTEM ## NHTSA's summary Vehicle does not start ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151944-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151944-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system ## Vehicles listed - 2014 to 2015 SMART FORTWO COUPE ELECTRIC ## Other bulletins for the same vehicles and component - [LI82.70\-P\-077433](/bulletins/11015640.md), 2025-03-17, Service bulletin: ELECTRICAL SYSTEM. Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover \(see picture "1"\) B. Assembly of microphones \(B25/20 or B25/21\) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone \(on adhesive tape\) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones \(B25/20 and B25/21\) Note: • It is recommended to replace the cover caps. • The non\-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes\-Benz vehicles, using Mercedes\-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case\-by\-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way. - [LI82.70\-P\-077433](/bulletins/11008091.md), 2024-09-28, Service bulletin: ELECTRICAL SYSTEM. Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover \(see picture "1"\) B. Assembly of microphones \(B25/20 or B25/21\) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone \(on adhesive tape\) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones \(B25/20 and B25/21\) Note: • It is recommended to replace the cover caps. • The non\-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes\-Benz vehicles, using Mercedes\-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case\-by\-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way. - [LI54.10\-P\-069138](/bulletins/10206076.md), 2022-01-06, Service bulletin: ELECTRICAL SYSTEM. "Vehicle Range Discrepancy – Voltage Difference of Cells too Great " - [LI54.65\-P\-069999](/bulletins/10170540.md), 2020-01-21, Service bulletin: ELECTRICAL SYSTEM. smart media system, reversing camera inoperative after software update and subsequent SCN coding - [LI82.85\-P\-058785](/bulletins/10167526.md), 2019-11-12, Service bulletin: ELECTRICAL SYSTEM. Highline can only be operated to a limited extent or not at all; the input points \(contact points\) are shifted horizontally relative to the display; calibration is not possible. - [LI54.21\-P\-058620](/bulletins/10167515.md), 2019-11-12, Service bulletin: ELECTRICAL SYSTEM. PreConditioning of the vehicle via the Vehicle Homepage or the instrument cluster does not function or is restricted. - [LI54.21\-P\-058620](/bulletins/10167514.md), 2019-11-12, Service bulletin: ELECTRICAL SYSTEM. PreConditioning of the vehicle via the Vehicle Homepage or the instrument cluster does not function or is restricted. - [LI00.10\-P\-056437](/bulletins/10167486.md), 2019-11-12, Service bulletin: ELECTRICAL SYSTEM. Range does not meet customer's expectations. Customers usually differentiate as follows: 1. Total of distance driven \+ indicated range remaining with one HV battery charge too low 2. Actual range until the drive system shuts down too low - [LI5410P069138](/bulletins/10153996.md), 2019-03-04, Service bulletin: ELECTRICAL SYSTEM. Vehicle Range ? Voltage difference of cells too great - [LI54 10\-P\-068383](/bulletins/10151978.md), 2018-12-17, Service bulletin: ELECTRICAL SYSTEM. Vehicle does not start JSON: [/v1/bulletins/10151944](/v1/bulletins/10151944) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI54%2010-P-068383&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10151944&vehicle=Service%20bulletin%20LI54%2010-P-068383)