Component Location - E70
On the E70, the active reservoir, including the delivery unit, is located on the right-hand side directly behind the front bumper panel. The passive reservoir is located on the left in the underbody, approximately under the driver's seat. The transfer unit is installed on the right in the underbody. Both fillers are located in the engine compartment.
SCR component location - E90
INDEX EXPLANATION CHART
| Index | Explanation |
|---|---|
| 1 | Active tank |
| 2 | Delivery module |
| 3 | Filler for active tank |
| 4 | Transfer pump |
| 5 | Filter |
| 6 | SCR catalyst |
| 7 | NOx sensor - post SCR catalyst |
| 8 | Passive tank |
| 9 | Metering module |
| 10 | Exhaust gas temp sensor - post DPF |
| 11 | NOx sensor - pre SCR catalyst |
| 12 | Filler neck for passive tank |
| 13 | DOC/DPF |