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Where is the location of the relay for?


Blu_Ray_UK2007

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The solenoid responsible for the air bag compressor on a 2007 E61 model.

Today, I acquired a new item from an undisclosed source, but regrettably neglected to inquire about its proper placement.

Up until this point, an examination has been conducted on the fuses located inside the right side of the tailgate/boot, the engine compartment, and behind the glovebox. The object in question is a five-pin item that exhibits a shade reminiscent to peppermint green.

The compressor and air bag valve solenoid are currently experiencing a lack of power. However, it has been determined that the compressor is functional when connected to a battery. I am uncertain about the appropriate methodology for testing the solenoid.

As previously mentioned, the inquiry pertains to the appropriate placement of the light green solenoid relay.

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It is evident that I have responded, as else I would not have done so. There is no indication in your statement about the verification of the spare wheel's location. Consequently, I commented that typically, the spare wheel is stored in the trunk, since that is where suspension-related components were located in my e61.

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As previously mentioned, the item in question was not found in any of the locations that were searched. The right side panel located in the trunk of the estate vehicle has all the fuses, including the 40A fuse. There is only one relay present, and it is not the one coloured bright green.
The fuses are located below the glove box, while the relays are absent in this area. In the engine bay, specifically behind the pollen filter panel in the passenger side corner, one can find the electronic control unit (ECU) along with many block connections. It is worth noting that the light green ECU is not present in this particular location.

After doing extensive online research, it seems that the control unit/module is located behind the wheel well carpet in the trunk. I will thereafter assess the power supply to determine its functionality.

Indeed, the compressor was functioning well. However, the left bag exhibited leakage, prompting the replacement of such bag with a new one manufactured by Arnott. Subsequently, it was suggested that the other new bag be installed as well, in order to ensure a harmonious pairing. I found the reasoning to be logical and coherent. The commencement of the problematic situation occurred at that point.

The procedure was executed in the same manner as the first attempt. However, when initiating the compressor, no response was seen.

The fuses are receiving electrical power, however, there is no electrical power reaching the block connections connected to the compressor or the adjacent solenoid. Therefore, it is possible that the issue lies with either the light green relay or the control unit/module. The abrupt occurrence of the event is inexplicable to me. Both my partner and her father are also perplexed.

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After doing a thorough examination and analysis, I discovered many issues during the code read. Specifically, the left and right solenoids, which are located next to the compressor, were identified as problematic. However, it was seen that there is a shortage of electrical power supply to these components.

Does this imply that the EHC module is defective and requires replacement?

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One possible suggestion is to consider seeking assistance from a relevant online community, where a substantial number of individuals who own X 1, 2, 3, 5, and 6 models are actively engaged in discussions and may be able to provide valuable insights.

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The solenoid relay in question is most probably intended for the suspension air compressor. The optimal placement for installation is in close proximity to the suspension compressor, which is often situated towards the back of the car, generally found in the trunk area or in the vicinity of the spare tyre well. Please search for a module that has air lines and electrical connections, since the solenoid relay should be connected to it. If the repair manual or consultation with a technician specialised in the setup of your particular vehicle is not readily available, it is advisable to seek assistance in order to get the necessary information.

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Indeed, I have located the control module as previously said. However, I am interested in acquiring knowledge on the procedure for testing this control module.

In the meantime, my intention is to inflate the bags using an additional battery connected to the compressor, which operates independently from the car's power source, in order to facilitate the movement of the object in question. Subsequently, a decision will be made about whether to retain or sell such object.

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