Shown on engine 642.975 |
1 | Engine air intake duct downstream of air filter |
2 | Electrical connector |
3 | Air cleaner housing |
B2/5 | Hot film mass air flow sensor |
P07.52-2028-11
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Remove engine air intake duct downstream of air filter (1). | Engine 642 in model 461 | |
Engine 642.884 in model 461.305/333/340/343/392 | |||
2 | Release and disconnect electrical connector (2) from the hot film mass air flow sensor (B2/5). | ||
3 | Remove screws from the hot film mass air flow sensor (B2/5). | ||
4 | Remove hot film mass air flow sensor (B2/5) and cover opening with a clean, lint-free rag. | Installation: Replace seal. | |
The intake air temperature sensor (B17) is located in the hot film mass air flow sensor (B2/5). | |||
5 | Install in the reverse order. | ||
6 | Read out and delete fault memory. | ||
| |||
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. | |
7 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. |
Referenced documents
- ad0000p200004a
- ad0000p200004a Connect STAR DIAGNOSIS and read out fault memory
- ah0000p500001a Notes on avoiding damage through contamination and foreign objects
- ah5400p000101a Information on preventing damage to electronic components due to electrostatic discharge
- ar0910p8130gx Remove/install engine intake air duct downstream of air filter
- as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
- 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.