FreexPatty Posted January 30 Share Posted January 30 Greetings, everyone. The multicontour seats in my just acquired 2007 S211 E550 are not operational. The pump operates when supplied with a 12-volt power source, but there is no additional functionality seen. Does anybody own a wiring diagram or a similar resource to provide assistance? Thank you everyone. Link to comment Share on other sites More sharing options...
Captiva Posted January 30 Share Posted January 30 Equally probable is the presence of a breach in the air supply. Inspect the connections located under the seats. The pump immediately shuts off if it is unable to sustain air pressure. The most straightforward method is to use the STAR system to assess the seat functions. This system has the capability to accurately identify any leaks, including those originating from the air reservoir located in the rear. Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 Stars are thieves. If nobody has the necessary wiring, what about the functionality? Should the bladders inflate and the motor activate when requested with the ignition on, or only when the engine is running? Is it necessary for someone to be in the seat, i.e. is the presence of an occupant detected? This is a sort of control.... Link to comment Share on other sites More sharing options...
AmericaMonster Posted January 30 Share Posted January 30 Star is also an excellent Mercedes expert. It is unnecessary to consult a primary dealer in order to detect a seat inflation problem. I am certain that there are several reputable independent Mercedes-Benz service providers in Essex that may be recommended. Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 Yes, there are. The cost for a diagnostic appointment alone is £145. Over time, I have developed a profound scepticism about the quality and usefulness of garage services. Link to comment Share on other sites More sharing options...
BuffUpdate Posted January 30 Share Posted January 30 Indeed, you lack knowledge about the qualities of a competent Independent expert. Furthermore, you fail to comprehend the remarkably affordable rates of a proficient and certified automotive electrician. In the last twenty years, I have seldom had diagnostic tests. However, on around fifty percent of those occasions, the tests were provided at no cost, while on other occasions, the expenses incurred were far below one hundred dollars. Wishing you success in creating your wiring diagram (You were inquiring whether chairs inflate even in the absence of someone sitting on them... Were you not? Link to comment Share on other sites More sharing options...
Shmoein Posted January 30 Share Posted January 30 Typically, the pump is the primary culprit as it becomes defective from prolonged use caused by a little leakage. Locating the source of the leak is a laborious process. Repairing it is also costly. Many individuals endure the malfunctioning of this without resolution. In addition, even in the absence of a leak, the pumps have a tendency to have a short lifespan. If I recall correctly, the pump costs around £800 as well. Link to comment Share on other sites More sharing options...
OmahaKnot Posted January 30 Share Posted January 30 The cost for a first-time repair by a reputable independent mechanic is £145, whereas opting for a less reliable approach of randomly replacing components may result in additional expenses without guaranteeing a solution. Have you inspected below the seats for any signs of a loose connection, a damaged piping, or any other noticeable issues? Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 I have a preference for personally handling all tasks since it ensures that the quality meets a familiar level. The aforementioned quotation is extracted from a locally situated independent establishment that has garnered great ratings, as shown by reviews. It is worth noting that a friend of mine used this establishment and was not really pleased by it. Based on your previous two remarks, it seems that you are clearly not experienced or involved in a practical manner. The purpose of the operation was to facilitate the debugging process when working alone. It is worth noting that the button is located at the front of the cabin, while the pump is situated at the rear. Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 When the pump is visible, there is no movement at all from the seat buttons. The pump operates when connected directly to a 12-volt power source. Therefore, the issue pertains to the need for seat occupancy. Could someone with one of these seats assist in answering that? Thank you. Correction - It is quite unlikely that the cost of the little pump would be as high as £800. Link to comment Share on other sites More sharing options...
BuffUpdate Posted January 30 Share Posted January 30 Refer to my previous remark. What is your rationale for believing that the pump would operate in the absence of a person on the seat? It is important to note that a small number of E500 cars were sold in 2007, and among them, only few were equipped with ventilated seats. The esoteric technology is used in other models, including the S, CL, and GL class. However, the majority of do-it-yourselfers and even highly skilled MB Master technicians will not have encountered the need to do maintenance on it. (C55, sometimes known as PCS, is excluded, etc.) I have had a total of ten luxury vehicles, including five E500 models and five V8 roadsters, coupes, and saloons. However, only one of these vehicles was equipped with vented and multi-contoured seats, which I never found necessary to use. A little online search reveals that the cost of the pump is a predictable £800. However, I am curious as to why you believe it is necessary to get a new pump given the existing one functions well when directly connected to a 12v power source. Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 I am uncertain and it seems that you are as well. It might be implemented either via software or hardware, such as wiring. The reason I am hesitant to go to a garage, whether it be independent or a large dealership, is precisely because of the restricted visibility and obscure nature of their operations. Regarding your second point, the pump unit comprises both a control board and the pump. The possibility of bypassing the pump does not eliminate the need to consider the control board, which is only available as a whole unit. Additionally, I would like to mention that I am of considerable height and do not find the chairs very pleasant, which is reminiscent of my previous experience with the M113 E500 model. I had hoped that the contour chairs would enhance comfort to some extent, but it seems that I may never ascertain this. Link to comment Share on other sites More sharing options...
FreexPatty Posted January 30 Author Share Posted January 30 Is there anybody who has access to any wiring diagrams yet? Thank you. Link to comment Share on other sites More sharing options...
Shmoein Posted January 30 Share Posted January 30 Online purchase of the schematics is available. https://b2bconnect.mercedes-benz.com/is/shop/workshop-solutions/xentry-wis For only a few euros, you may get a minimum duration of one hour. Link to comment Share on other sites More sharing options...
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