Front Left Or Right Brake Pad Wear Sensor Fits Mercedes E, S Class A2015400317

Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.

The brake pad wear sensor (OEM A2015400317) is an essential safety component designed to monitor the condition of your front brake pads on compatible Mercedes-Benz E-Class, S-Class and other models. This sensor continuously tracks brake pad thickness and alerts the driver via the dashboard warning light when the pads reach their minimum safe wear limit, helping prevent brake performance loss and ensuring timely maintenance. When replacing brake pads, it is recommended to replace the wear sensor at the same time, as the sensor can be damaged during pad wear or removal.

OEM Number: A2015400317, 2015400317

Placement on Vehicle : Front Left OR Right

Length : Apprx. 180 mm

Brake Type : Disc Brake

Our SKU: TM2015400317_313

All our Front Left Or Right Brake Pad Wear Sensor Fits Mercedes E, S Class A2015400317 are OEM quality and reliable after market car parts. This Front Left Or Right Brake Pad Wear Sensor Fits Mercedes E, S Class A2015400317 is specifically compatible with Mercedes-Benz: 124, 190, E-Class, S-Class, Saloon, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

• Accurate Wear Monitoring: Designed to detect exact brake pad thickness and send an electrical signal to the vehicle’s control system when wear limits are reached, helping you stay ahead of critical brake maintenance.

• Direct OEM-Fit Replacement: Matches the original Mercedes-Benz part number A2015400317 (also referenced as 2015400317) for straightforward install on compatible models.

• Front Axle Compatibility: Typically fitted to the front brake pads and works with the disc brake setup for responsive and reliable wear signalling.

• Helps Maintain Brake Safety: Early warning of brake pad wear prevents performance loss, reduces stopping distances, and supports overall vehicle safety.

• Ideal with Pad Replacement: Brake pad wear sensors often burn out or break as pads wear; replacing the sensor during pad change helps ensure continuous monitoring.

Frequently Asked Questions (FAQs)

Q: What does a brake pad wear sensor do?
A: A brake pad wear sensor electrically monitors pad thickness. When the pad material wears down to its minimum safe level, the sensor triggers a dashboard warning light to alert the driver that it’s time to replace the pads.

Q: Why should I replace the sensor when changing brake pads?
A: Wear sensors are designed to make contact with the rotor as the pads wear down. Once worn or damaged, they may not accurately signal future wear, so fitting a new sensor with fresh pads ensures reliable monitoring.

Q: Which vehicles commonly use part number A2015400317?
A: This sensor is typically used on various Mercedes-Benz models — including E-Class and S-Class vehicles — that use the A2015400317 / 2015400317 brake pad wear indicator. Compatibility should be verified with your VIN or existing part number.

Q: Can the sensor be fitted on left or right sides?
A: Yes. This sensor fits either the front left or front right brake pad wear indicator positions on compatible Mercedes vehicles.

Q: Do I need special tools to install it?
A: Brake pad wear sensors typically plug into the brake pad and connect to the vehicle harness. While simple vehicles may allow DIY installation, professional fitting is recommended to ensure correct routing and secure connection.

1. Standard Shipping (Free) - Please allow 1-3 days for your order to be delivered 
2. DPD Next Day (£4.99) - Please place orders between Monday - Thursday before 4 PM UK time. This service applies to UK Mainland orders only.
3. Royal Mail Special Special Saturday Delivery (£19) - Please place orders between Monday - Friday before 3 PM UK time. 
4. International - Rates vary based on product size. Please enquire for further details. 

We do not provide any guarantees on shipping times, as we are reliant on 3rd parties. However, we strive to ensure that our customers are always satisfied.

All products are protected by a upto 10 year worry-free warranty depending on Part 

Warranty Coverage: Eligibility: To be eligible for 10-year warranty coverage, the car part must be fitted by a certified professional mechanic. Proof of fitment, including the mechanic's certification, must be submitted to Amesplan LTD within 30 days of the part's purchase date. Please send supporting documentation to us via email.In case a purchased product becomes faulty during its warranty period, for reasons unrelated to your acts, omissions or misuse of the goods, you must promptly notify us and fill out a warranty claim form. 

Warranty Non-Coverage: We do not have any liability for any defect arising from normal wear & tear, wilful damage, negligence, tampering of the goods, incorrect fitting of the goods by you and/or a third party. We are also not liable for any abnormal working conditions, alteration or repair of the goods or a failure to follow goods manufacturers' instructions (whether oral or in writing) 

We have a 180-day return policy, which means you have 180 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unused, and in its original packaging. You will also need the receipt or proof of purchase. 

For All Return buyers pay Return Postage.Returns will only be processed after we receive the approved part and a member of our team fully inspects the returned item & successfully matches the returned part to the return reason. 

For All UK orders, we offer free return. We do not offer any reimbursement of shipping costs for Any orders on original sale like Next Day Postage. 

For All Outside UK order  We do not offer any reimbursement of shipping costs for Any orders on either the original sale or the return. 

Please direct all questions to sales@d2pautoparts.com. 

Damages and issues 
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exchanges 

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds 
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund.