Mercedes Seat Belt Sensor. In this video I show how I diagnosed and fixed a seatbelt buckle

In this video I show how I diagnosed and fixed a seatbelt buckle fault on a Mercedes-Benz W204 C-Class that caused the airbag warning light to stay on. Let’s take a look at some of the most common solutions. Insert the key into the ignition and Nov 17, 2025 · Don't know much about cars?. What Is a Seatbelt Sensor and How Does It Work A seatbelt sensor is a critical component of a vehicle’s safety system. This video will show you how to fix a seat belt retractor, where it Mar 11, 2013 · I'm trying to remove the passenger seat cushion from my '05 SLK to get at the SRS seat sensor. It is typically located This MK3 Emulator is a clever diagnostic tool that helps you figure out the problem. Get the best deals for Seat Belt Sensor Mercedes at eBay. Long term you will likely need to replace the weight sensor I'm the seat. Learn how to repair seat belt pretensioners and reset airbag modules after a crash/collision. Nov 27, 2014 · Hello wise ones, every time I start my car the rear seat belt warning is displayed in the driver info panel. Fix; SRS Restraint System Defective on any Mercedes-BenzThis is the common issue with most Mercedes Benz SRS Restraint system defective fault that asks you t Learn how to repair seat belt pretensioners and reset airbag modules after a crash/collision. The fault presents itself by the passenger seatbelt symbol on the dash blinking on for a while followed by the addition of the SRS symbol and eventually an audible Dec 29, 2017 · Your Mercedes '93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi Dec 31, 2017 #6 On early cars you can get issues with the seat occupancy sensor failing - often as a result of someone kneeling on the seat and damaging the pad or someone putting something sharp and heavy on the seat damaging the sensor. I had Malfunctioning Seat Belt Sensor Override and Alarm Stopper a QUICK FIX especially if you have Pets Apr 16, 2020 · I have a 2008 A180 CDI W169 with an SRS fault that has been haunting me since the day we bought it second hand from a dealer. You should inspect your belts ever six months for signs of chafing, splits or broken fibers in the fabric. Shop for your next vehicle, or start selling in a marketplace with 171 million buyers. Thanks! Terms and Conditions All merchandise is used unless otherwise noted. Sep 13, 2020 · So every time i start my car I get that seat belt warning light flash up on the dash for the rear seats - you just have to click ok to remove it, but can I Dec 18, 2024 · A sensor mounted in the front passenger seat senses when someone is sitting in the passenger seat. Nov 24, 2023 · The seat belt sensors are located in the seat belt buckles. eBay Motors makes it easy to find parts for cars, trucks, SUVs, motorcycles & more. I am aware that there is a pressure sensor under the passenger seat to detect a load/second occupant. The sensors detect when the seat belt is fastened and send a signal to the seat belt reminder light and chime. Electronic items from vehicles are required to accept interference from external sources per federal laws. 9c22 error code part number A2128703010more Mar 12, 2011 · Has anyone used or come across one of these? ,i have a malfunctioning seat pad sensor and thought it might just be easier to bypass the pad as i will never have a child seat inthe front of my w210. Please note what our parts came off of to help determine your interchange. If you are driving solo have you tried just doing up the passenger seat belt, that would isolate the problem to the belt or the seat pad. Disabling it is likely a bad idea as you could have the secondary effect of accidentally disabling your airbags entirely. Detailed seat belt removal front and rear on any damaged vehicle May 6, 2015 · SRS Restraint System Defective In my case the seat belts on driver side and rear right passenger side of my W211 are jammed after a minor LHS fender impact. The fault presents itself by the passenger seatbelt symbol on the dash blinking on for a while followed by the addition of the SRS symbol and eventually an audible May 17, 2022 · If the belt is not properly inserted, the seat belt sensor will not identify it and will not trigger the airbag in the event of an accident. Mar 26, 2023 · How to SLKR172 Automatic Child Seat Recognition (ACSR) Specs & Transponder (edited to "How to"): Looking on eBay all I could find was a Seat Airbag emulator, and 1 set of Genuine Mercedes Transponders taken out of a Genuine Mercedes Child seat, but as at the time of doing this post I didn't Mercedes E Class 2003-2008 Bosh Front Passenger Seat mat Airbag Occupancy Sensor , Child seat recognition unit emulator & Seat belt simulator . Mar 7, 2020 · There was only one 2-pin connector to the seat belt buckle so now I remember I quit seeing a seat belt warning light on the dash at all, since I always buckle-up then start the engine. Sometimes if I move the belt in the buckle part where it snaps it, that stops the beeping for a bit. May 29, 2009 · Noise level sensor (Radio) - 1 Crash sensor - At least one in front, probably more. The seatbelt light would flash unless I fastened the seat belt in the empty passenger seat. My '05 E500 passenger seat sensor was incorrectly calibrated to show 11# in the seat when empty. Please verify you are purchasing the correct item, before Mar 7, 2020 · The "seat belt unfastened" light is an icon showing a belted person) As far as i know, the T1N doesn't have the two-levels-of-resistance in the buckle mechanism. Non-slip Seat Protection Red Leather Seat Covers For Mercedes-Benz 2000-2025 - Full Set With Airbag Compatibility Full Set Leather Car Seat Covers Airbag Compatible Red (4. I recently replaced the heater motor and fan, which entailed lying half-on the seat for an extended period, and next time I started the car the SRS warning light came up. I Installation of a seat occupancy sensor and seat belt emulator to repair airbag fault on Mercedes A Class W176 Jul 21, 2016 · When it first happened I sprayed copious amounts of Contact Cleaner into the seat belt buckle. Read more. At Halfords we’ve got car parts and auto spares for every car. Mercedes-Benz C300 Airbag light on? Our seat belt repair after accident will take care of the light and your seat belt! 100% OEM parts, 24 hour turnaround and Lifetime Warranty. SDS confirmed that this was the failure. The sensor was recalibraated and now is all OK. Apr 29, 2024 · She said she'd speak to the engineer and the engineer said "seat belt tensioning systems come under seat belts, so we don't cover them" - this seems contradictory in my opinion. Learn how MyAirbags can repair or reset specific components to resolve airbag warning lights and ensure vehicle safety. Aug 13, 2010 · Hi Guys The seat belt has been pulled out all the way and is not interested in recoiling back. It bypasses the seat mat sensor by emulating a signal that tells the car's computer the seat is always occupied (and the belt is engaged). 6) | 5520 ratings Jul 23, 2005 · The passenger side occupancy sensors in the E series has apparently been giving problems. The seat belt helper thingy has stopped working and the SRS light is on. May 8, 2012 · I have a 07 S550 and the front passenger seat belt sensor chimes when no one is in the seat. So I will be wearing my seat belt but the warning beep will still come on. 9K 255K views 4 years ago the seat belt sensor light despite seat belts lockedmore We would like to show you a description here but the site won’t allow us. Regularly inspect the belt for signs of wear, fraying, or damage, and replace it immediately if you notice any issues. Instead of buying a new costly seat pad, I decided to buy a seat pad simulator from the internet together with a seat belt emulator. What you see in this accident looks really painful in slow motion. I believe that the sensor has 2 resistors as part of the circuit. cl Nov 10, 2025 · Seat Belt Seat Belt Seat Belt Problems of Mercedes Benz C300 - part 1 Mercedes Benz C300 owners have reported 62 problems related to seat belt (under the seat belt category). The seat mat and seat belt emulator are put in one enclosure which is easier to hide under the seat. Mercedes E Class 2002-2003 Front Passenger Seat mat Airbag Occupancy Sensor , Child seat recognition unit emulator & Seat belt simulator . Seat Belt Webbing Replacement In addition to Mercedes seat belt repair, we offer webbing replacement! This is to replace your fabric material. I assume I will have to disassemble the car to get at the mechanism. This can turn off that annoying warning light and help you pinpoint if the sensor itself is the real issue. If a car if equipped with the unfastened seat belt warning system, install the seat belt emulator as well. Seat Occupancy Mat Bypass Emulator is designed to simulate the passenger in the seat and turn off the airbag and seat belt lights. Kyle is here to show you how to replace the faulty seat belt buckle on your Mercedes. Because the sensors in the seat belts and retractors are calibrated to each other and to the vehicle, the seat belt resetting operation must be completed each time a new airbag computer is installed. Many companies in the US provide seat belt retractor pre-tensioner repair and recharge services. Save money with MyAirbags fast 24-hour service. The seat mat emulator plug was connected in place of the mat, the seat belt emulator plug – in place of the seat belt buckle. Anyone have any luck doing this on an SLK? 1)Turn key to ON/START - within 60 seconds, turn ignition OFF and fasten the driver seat belt. The light coming on is good enough for me. 4. All seat belts have a gas charge or a pyrotechnic device in them that go Seat belt Buckling a three-point seat belt A seat belt or seatbelt, also known as a safety belt, is a vehicle safety device designed to secure the driver or a passenger of a vehicle against harmful movement that may result during a collision or a sudden stop. Everybody knows what happens in an accident if you don’t wear a seatbelt. As the seat belt emulator was missing in the Jul 23, 2005 · The passenger side occupancy sensors in the E series has apparently been giving problems. The noise is annoying and I want to disable it? Thanks. Mar 20, 2016 · The fault then could be the occupied sensor in the pad or in the seat belt buckle, as as earlier in the connections. It lasts for about 10 seconds and disappears or I can delete it on the steering wheel controls. That's okay. It is one of the most common problems with the airbag systems in most cars, including Mercedes, BMW, Hyundai, Kia, Honda, Audi, Toyota, Chevy, Subaru, Nissan, VW, etc. Jul 21, 2016 · When it first happened I sprayed copious amounts of Contact Cleaner into the seat belt buckle. The mechanic told me that this is a common problem. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Sep 1, 2008 · The SRS system has a pre-tensioner in each seat belt, several air bags, sensors throughout the car to activate same, and a child sensor in the front passenger seat. Most emulators include an original connector for easy installation and can be added to your car with the push of a button. Modern seatbelts Once the gas charge is deployed, the Mercedes seat belt will no longer work again and will require a full rebuild along with a new gas charge, sensor and other parts such as the coil spring. Drive the vehicle for several miles to allow the system’s control module to recalibrate. Most parts will interchange, but we cannot be held responsible if they do not. Always consult your vehicle’s manual and exercise caution while working on any car components. Steering Airbag was deployed. Expert Tips for Maintaining Your Mercedes Seat Belt System Keeping your Mercedes’s seat belt system in excellent condition is more than just ensuring it sounds the alert—it’s about maintaining overall safety readiness. Get your car seatbelt fixed in a few simple steps We would like to show you a description here but the site won’t allow us. The seat belt presenter is a common point of failure as the entire thing is made of plastic, which after years of use becomes brittle and breaks. Nov 16, 2023 · Trying to access your seat belt sensor? Find out in this article where the seat belt sensor is located, plus accessing tips. Learn what the passenger seat sensor does. Jun 29, 2021 · Buckled my seatbelt, all set for a drive, Wait, my seatbelt light stays on? Might be a faulty sensor. – Seat belt buckle emulator installation instructions – click 5. Also please check out the statistics and reliability analysis of Mercedes Benz C300 based on all problems reported for Subscribed 1. I now find that a friend attempted to fix a jammed rear seat belt buckle and replaced the fixed part of the mechanism between the rear seat squabs. Question 1) With my extremely noob knowledge: is a retraction sensor fault in the belt mechanism the same as a seat belt tensioning system, ergo it should be covered? I have a 1993 mercedes 190E and the seat belt light keeps flashing even with all the seat belts in locked position. How do i permanently fix this problem? Thank you in advance for your help. It also has an occupancy sensor, or weight sensor, to determine if you have a passenger in the car. I've fiddled with it a bit #SEATBELT #CLEVORBMF #HOWTODISABLE YOUR SEAT BELT DINGING FOR GOOD!!!Thanks For Watching!For Merch or Products we sell head over to our website!http://www. Comprehensive guide on Mercedes-Benz SRS/Airbag DTC codes, including faults in airbag control modules, seat belts, impact sensors, and more. 2)Start engine and wait for the seat belt Apr 29, 2024 · She said she'd speak to the engineer and the engineer said "seat belt tensioning systems come under seat belts, so we don't cover them" - this seems contradictory in my opinion. Checked wires in the harness Mercedes W203 2004/5-2007 seat occupancy sensor and seat belt emulator installation BLSHOP Elektronika Samochodowa 645 subscribers Subscribe Oct 26, 2020 · The seat belts in your Mercedes C320 are an integral part of the safety system. Check out this complete guide to fix this problem. Anyone on here who can shed any light on exactly which connector I should be looking for. How To Replace Seat Occupancy Sensor for Mercedes-Benz W212 E220 E260 E200 E300 E350 E250 E400 E500 E63 E180 . There was also a code for faulty programming for the child seat recofnition on the passenger seat (right side) it was NOT a faulty sensor BUT needed programming as told by the shop. This video is applicable to all CLK and most C-Class models between 2003-2007. i dont fancy taking out the seat and certainly dont facy paying big bucks for some one else to do Nov 13, 2023 · Question: Does anyone have experience or documentation regarding the sensor in the seat belt receiver (drivers) regarding how it works or is assembled? Issue: The seat belt warning light and chime activates while driving even while the seat belt is properly fastened. May 15, 2010 · Please spare me I should wear my seat belt to make it quiet. Therefore, I have come up with an easy and cheap By utilizing a weight sensor in the seat and by using the distance the belt goes around you, it allows the computer to approximate the amount of mass in the seat so that in the event of a heavy collision, the system will provide adequate restraining forces, instead of just locking the belt and breaking all your ribs. After replacing the seat belt, the pre-safe system may show 'inoperative' due to sensor misalignment or incomplete relearning. Visit Mercedes-Benz of Chantilly in Chantilly #VA serving South Riding, Centerville and Ashburn #W1KMK6BB1TF106428 Apr 13, 2023 · I thought the yellow connector under the seat was to do with the air bag sensor for occupancy? Some seat belt also tighten in a collision. Your seat belt buckle also has a resistance sensor in it, so if it is folded inward, can also cause false readings. Insert the key into the ignition and Mercedes Benz Seat Occupancy Sensor Replacement If you find these videos useful and you want more, please consider joining and becoming a supporter https://w Dec 26, 2019 · My A180 has been giving me intermittent starting/cutting out problems for some weeks now and the MB garage is unable to pinpoint the fault. Simplest is probably to just plug the belt in. Jan 21, 2011 · The diagnostic read out revealed that it was a faulty right side seat belt buckle. Jul 19, 2013 · I saw this procedure for disabling the seatbelt alarm on the Crossfire Forum. Jul 27, 2025 · In this comprehensive guide, we will explore the most common symptoms of Mercedes seatbelt sensor issues and provide a step-by-step approach to diagnosing seatbelt sensor problems. Maintenance Tips to Keep Your Seat Belt in Top Shape Keeping your Mercedes seat belt in peak condition isn’t a one-and-done job; it requires regular attention and proactive maintenance to ensure that it performs flawlessly whenever you need it most. Rather than driving with airbag and seat belt warning lights on when this mat malfunctions, the emulator will treat the seats in your car as if they are actually occupied by an adult, no matter who or what is sitting there. Maybe the buckle isn’t working? Find trusted specialists online and compare seatbelt repair costs online. To turn off the seat belt warning chime in your Mercedes, follow these steps:Sit in the driver's seat and close the door. The wiring points for the seat pad are near the fold in the seat. I have recalibrated the seat but this reset only lasts a few days before the problem starts again. Mercedes Benz. May 1, 2023 · I have had a recall on seat belts in 2018 , the dealer told me. com. now recently I had the driver seat belt intermittently beeping and showing that the belt is not fastened when in fact it is. Jan 22, 2020 · Really hoping someone might be able to help me. Reset the fault code using proper diagnostic software. The most recently reported issues are listed below. Our step-by-step guides will help you to maintain and repair your MERCEDES-BENZ C-Class quickly and easily by following the instructions of professional technicians. It didn't work for my 2002 SLK32. The diagnostics ran for $100 Apr 22, 2014 · Shorting the 2 sensor connector wires together will not switch off the light. To avoid mistakes and ensure that You have ordered the correct device for Your car - please fully read description and provide requested details. Cabin temperature sensor - 1 Fuel level sensor - 1 Ambient light sensor for instrument panel - 1 Air pollution sensor for auto switch to charcoal filter - 1 Seat belt sensors (for front airbag deployment) - 2 (Not sure about rear belts) Passenger seat occupancy . I do wear it most of the time. New 2026 Mercedes-Benz CLE CLE 450 Convertible Polar White for sale - only $84,235. It is driving me crazy though. I don't even want to go on long trips now The seat mat sensor is responsible for detecting the weight of the passenger and determining if the airbag should be deployed in case of a collision. If your Mercedes-Benz seat belt won’t retract, but you know the car hasn’t been in any accident, read this article on Common seat belt problems and solutions. We even offer a massive selection of new & pre-owned classics, hot rods, exotics, vans, ATVs, RVs, boats and more at eBay Motors. We would like to show you a description here but the site won’t allow us. 2)Start engine and wait for the seat belt A video on how to fix stuck, locked & jammed seat belt pretensioners after accident. If the emulator is not ended with plug or terminals, it is needed to use special clamp connectors or solder wires. The local MB service told me that they have to put it on a diagnostic test and when I asked who would pay for it , it was not clear. Does anyone know the resistance values for this? Apr 17, 2017 · Hi guys, I own an early W209 (2003) that has a faulty seat occupancy sensor and as a result shows an SRS alarm. Mercedes Seat Belt Locked after Accident, Fix Sep 15, 2023 · The seat belt sensor works on weight, so if something too heavy is on the seat, the sensor will think that someone is sitting there, and the alarm will sound. We stock over thousands of car parts with matching quality to the manufacturer’s original equipment. If you've cleaned the seat belt webbing and loop but the belt still slowly retracts, it's time to check the seat belt retractor. Fortunately, there are a few things you can do to troubleshoot your car’s seat belt alarm and get it to stop going off. As far as I'm aware, there are no weight sensors in the back and due to legal regulations it has to show you which belts are fastened (the seat switches from yellow to white if so). Question 1) With my extremely noob knowledge: is a retraction sensor fault in the belt mechanism the same as a seat belt tensioning system, ergo it should be covered? Free detailed manuals and video tutorials on DIY MERCEDES-BENZ C-Class Saloon (W205) repair. This video will show you how to remove/replace the seat belt buckle in a Mercedes C or E Class (and most likely lots of other Mercedes models)Pick up the MB To turn off the seat belt warning chime in your Mercedes, follow these steps:Sit in the driver's seat and close the door. 1 day ago · This guide will walk you through the steps to troubleshoot and fix common seatbelt sensor issues, ensuring your vehicle operates safely and efficiently. Understanding these warning signs early can help prevent costly repairs and enhance your vehicle’s safety. Sep 6, 2024 · This is a MERCEDES SEAT BELT SENSOR MODULE 2158600505. Are you having problems with your seatbelt? Maybe your seatbelts are not releasing or retracting. Apr 13, 2023 · I thought the yellow connector under the seat was to do with the air bag sensor for occupancy? Some seat belt also tighten in a collision. Can I disable / change the function. Has anyone posted instructions for doing this on a 2003 cab? Apr 16, 2020 · I have a 2008 A180 CDI W169 with an SRS fault that has been haunting me since the day we bought it second hand from a dealer. Resistance 'A' is seen when the switch is connected but not closed, Resistance 'B' is seen when the sensor is connected and closed (seat belt plugged in). My iCarsoft says it's open Nov 18, 2024 · Automobiles have a seat belt sensor located in the seat belt buckle of both the driver’s seat and front passenger seat. Aug 21, 2018 · Had the bad child seat sensor on the front passenger seat of my 1998 W210 wagon.

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