# Service bulletin LI83.10\-N\-071291

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: 10228818
- Published by NHTSA: 2023\-01\-05
- Manufacturer's number: LI83.10\-N\-071291
- Manufacturer's date: 2022\-12\-11
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY

## NHTSA's summary

Complaint Various customer concerns of Climate Control system operating inadequately. Cause Stepper motor linkage in the heater case may cause a mechanical fault during actuation during unfavorable environmental conditions. NOTE: If the vehicle is equipped with H13 \(rear additional heat exchanger\), There is an additional stepper motor in the rear heater case under the vehicle. This stepper motor can influence the normalization process. May include fault code: B1A9C07 the output for control valve "Left water valve" has a malfunction. There is a mechanical fault. The component is called N29/12 \(rear additional heat exchanger \) . Remedy: See instructions

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10228818-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10228818-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Glass, wipers and mirrors, Heating and air conditioning

## Trouble codes named

B1A9C

## Vehicles listed

- 2019 to 2024 MERCEDES\-BENZ SPRINTER 1500
- 2019 to 2024 MERCEDES\-BENZ SPRINTER 2500
- 2019 to 2024 MERCEDES\-BENZ SPRINTER 3500
- 2019 to 2024 MERCEDES\-BENZ SPRINTER 4500

## Recalls for the same vehicles and component

- [23V100000](/recalls/nhtsa/23V100000.md), 2023-02-17: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR
- [2022214](/recalls/tc/2022214.md), 2022-04-27: Visual System
- [2021349](/recalls/tc/2021349.md), 2021-06-04: Visual System
- [2021076](/recalls/tc/2021076.md), 2021-02-19: Visual System
- [2019333](/recalls/tc/2019333.md), 2019-07-03: Visual System
- [19V507000](/recalls/nhtsa/19V507000.md), 2019-07-02: VISIBILITY:GLASS, SIDE/REAR

## Other bulletins for the same vehicles and component

- [LI82.35\-N\-078930](/bulletins/11016430.md), 2025-04-03, Service bulletin: VISIBILITY/WIPER. Warning Lamp "Washer Fluid Empty" Yet Reservoir Is Not Empty Complaint: Warning lamp "washer fluid empty", even thought the washer fluid reservoir is full Cause: Insufficient electrical conductivity of the washer fluid, as the washer fluid was mixed with distilled water. Tip: The washer fluid sensor detects the electrical conductivity. If air is present without electrical conductivity between the measuring points, as is the case with an empty tank, an empty tank is detected by the sensor. Distilled water also does not have electrical conductivity, meaning that the sensor detects an empty tank, even if this is not the case. Remedy: Fill reservoir with standard washer fluid and water \(no distilled water\) in an adequate ratio in order to ensure electrical conductivity. Exchange of the reservoir with a welded\-in sensor is only required if filling with conductive washer fluid has not provi\- ded a remedy. This can be made certain by utilizing water with a light amount of salt dissolved in to it for stronger con\- ductivity.
- [2013120011](/bulletins/10249333.md), 2024-01-29, Service bulletin: VISIBILITY; STRUCTURE. Mercedes\-Benz AG, the manufacturer of Sprinter vehicles, has determined that on certain Sprinter \(907 platform\) vehicles, the chemical composition of the topcoat paint might not meet specifications. In such case, adhesion of the fixed windows to the vehicle body might be impaired. As a result, a loosening or detachment of the windows cannot be ruled out over the vehicle's lifetime, which could increase the risk of injury in the event of a crash. In addition, loosening of secured objects cannot be ruled out for vehicles with lashing rails, which could increase the risk of injury for vehicle occupants.
- [2013120001](/bulletins/10249332.md), 2024-01-29, Service bulletin: VISIBILITY; STRUCTURE. Mercedes\-Benz AG, the manufacturer of Sprinter vehicles, has determined that on certain Sprinter \(907 platform\) vehicles, the chemical composition of the topcoat paint might not meet specifications. In such case, adhesion of the fixed windows to the vehicle body might be impaired. As a result, a loosening or detachment of the windows cannot be ruled out over the vehicle's lifetime, which could increase the risk of injury in the event of a crash. In addition, loosening of secured objects cannot be ruled out for vehicles with lashing rails, which could increase the risk of injury for vehicle occupants.
- [LI20.20\-P\-073274](/bulletins/10199660.md), 2021-08-04, Service bulletin: EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Coolant warning in instrument cluster \- Leak in coolant line
- [LI72.10\-N\-071194](/bulletins/10179959.md), 2020-09-21, Service bulletin: STRUCTURE; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; EQUIPMENT. Left and/or right window regulator mount is broken
- [LI83.10\-N\-071291](/bulletins/10177546.md), 2020-07-27, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:MECHANICAL. Fault Code B105C07 the actuator motor for the air recirculation flap has a malfunction. There is a mechanical fault current and stored in the AAC and / or B113600 the measurement run for actuator motors for air flaps has a malfunction.
- [LI83.10\-N\-070782](/bulletins/10171650.md), 2020-02-24, Service bulletin: ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Climate Control Blower Motor Nonfunctional
- [V\-RC\-2019100008](/bulletins/10169046.md), 2019-12-09, Service bulletin: VISIBILITY. Replace Side Windows
- [V\-RC\-2019030013](/bulletins/10158599.md), 2019-04-15, Service bulletin: VISIBILITY; EXTERIOR LIGHTING:FOG LIGHTS. Rear Fog Lamp with LED Rear Lamps

JSON: [/v1/bulletins/10228818](/v1/bulletins/10228818)

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