B14.40-0061-08
1 | Metering unit | 6 | AdBlue SCR Temperature sensor (17B07) | 11 | Deflector plate | ||
2 | Compressed air piping | 7 | SCR compressed air pressure sensor (17B06) | 12 | Support | ||
3 | Injection piping - AdBlue/Air mixture outlet connection | 8 | AdBlue SCR metering valve (17Y03) | 13 | Bushing | ||
4 | Electric wiring harness | 9 | Heating element (17R05) | 14 | AdBlue inlet | ||
5 | AdBlue SCR pressure sensor (17B05) | 10 | Support | 15 | Piping nozzle - AdBlue inlet |
| Remove/install | ||
Warning | Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue | Pour AdBlue into suitable containers only. Wait until the pressure is released before starting any work on the exhaust aftertreatment system. | |
1 | Turn off ignition | ||
Topical note | Notes on use, material properties and handling of AdBlue® | ||
Indications for applications, material properties and AdBlue handling | |||
2 | Remove the injection line (3) | ||
Installation: Replace the injection piping after each removal. | |||
For gas-driven vehicles. | |||
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Metering unit is located on the chassis frame. | |||
3 | Remove the compressed air piping (2) at the metering unit (1) | Seal the orifice with an adequate closing plug. | |
Installation: before the assembly, check the sleeve ring of the compressed air line (2) for foreign matter, dirt and damages. | |||
.Compressed air line hollow bolt on dosage unit | |||
4 | Loosen the wiring harness (4) from metering unit (1) disconnecting the electrical plugs (5,6,7,8) | ||
5 | Remove the bracket (10) from the metering unit (1) | .Dosage unit on support | |
6 | Disconnect the heating electric plug (9) and move it up the support (10) along with the wiring harness (4) | ||
7 | Remove the AdBlue inlet hose (14) at the opening of pipe (15) | Make sure AdBlue does not splash from the AdBlue flow hose on the electric connections, because it may damage the AdBlue metering unit (1). | |
Install: Before the assembly, check the AdBlue flow hose for foreign matter, dirt and damages, replace if necessary. | |||
8 | Remove the pipe nozzle (15) from the metering unit (1) | Remove only if necessary replace the sealing ring of the metering unit (1) | |
.AdBlue inlet pipe opening on dosage unit | |||
9 | Release the metering unit (1) from the deck plate (11) and the bracket (12) | Installation: Before assembling, check the metering unit (1) for foreign matter, dirt and damage. Line up the deck plate (11) with the bracket (12). | |
.Dosage unit on support | |||
10 | Remove the bushings (13) | Installation: Check the bushings (13), replace if necessary. | |
11 | Install on the reverse order | ||
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
12 | Starting engine | ||
13 | Check the tightness of the dosing unit (1) with the engine running |
Referenced documents
- ah1440n000101a Notes on use, material properties and handling of AdBlue®
- ar1440b2001a Remove/install injection line for exhaust aftertreatment system
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as1440z000101a Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue