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- Description
- Fitment
- Warranty and Refund
- Reviews
The MotoRad 1CL1003 Engine Coolant Level Sensor is designed to help keep your BMW's cooling system running the way it should. Calibrated to exact tolerances, it delivers dependable coolant level readings so you know when your system needs attention before overheating becomes a problem. Built at ISO TS16949 manufacturing facilities, this sensor is engineered to meet or exceed OEM specifications, giving you confidence that fit and function match what your BMW was designed for. The plastic housing features a female pin-style, push-on connector for straightforward installation, and applicable sensors come with thread sealant and/or an O-ring pre-installed to help guard against leaks. Covering a wide range of BMW models and engines from 1998-2011, including 323i, 325i, 330i, M3, X5, and 745i variants, the 1CL1003 is a practical replacement choice for keeping your coolant monitoring system accurate and reliable.
Features
- Calibrated to exact tolerances for consistent, dependable coolant level readings you can trust
- Pre-installed thread sealant and/or O-ring on applicable sensors helps prevent leaks after install
- Engineered to meet or exceed OEM specifications, supporting proper fit for your BMW
- Female pin-style push-on connector simplifies wiring hookup during replacement
- Helps you catch low coolant conditions early, reducing risk of overheating damage
Application Summary
1998-1999 BMW 323i 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS1998-1999 BMW 323is 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
1999 BMW 323ti 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
1999 BMW 328i 2.8L 2793CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
1999 BMW M3 3.2L 3152CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2002 BMW Z8 5.0L 4941CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2001-2002, 2004-2005 BMW 330xi 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2003 BMW M5 5.0L 4941CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2001-2004 BMW 320i 2.2L 2171CC 132CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2004, 2006 BMW X5 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2005 BMW 325i 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2005 BMW 325xi 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2005 BMW 330i 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2006 BMW 325Ci 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2006 BMW 330Ci 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2001-2006 BMW M3 3.2L 3246CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2002-2005 BMW 745Li 4.4L 4398CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2002-2005 BMW 745i 4.4L 4398CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2003 BMW Z8 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2003-2005 BMW 525i 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2003-2005 BMW Z4 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2004-2005 BMW 530i 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2004-2005 BMW 545i 4.4L 4398CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2004-2005 BMW 645Ci 4.4L 4398CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2004-2005 BMW X3 2.5L 2494CC 152CID L6 DOHC 24 Valve Naturally Aspirated GAS
2004-2006 BMW 760i 6.0L 5972CC -CID V12 DOHC 48 Valve Naturally Aspirated GAS
2004-2008 BMW 760Li 6.0L 5972CC -CID V12 DOHC 48 Valve Naturally Aspirated GAS
2005 BMW 320i 2.0L 1995CC 122CID L4 DOHC 16 Valve Naturally Aspirated GAS
2005 BMW X5 4.4L 4398CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2006 BMW 325i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006 BMW 325xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006 BMW 330i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006 BMW 330xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006 BMW X3 3.0L 2979CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006 BMW Z4 3.2L 3246CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006, 2008 BMW 750i 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2006-2007 BMW 525i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006-2007 BMW 525xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006-2007 BMW 530i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006-2007 BMW 530xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006-2008 BMW 750Li 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2006-2010 BMW 323i 2.5L 2497CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2006-2010 BMW 550i 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2006-2010 BMW 650i 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2006-2010 BMW M5 5.0L 4999CC -CID V10 DOHC 40 Valve Naturally Aspirated GAS
2006-2010 BMW M6 5.0L 4999CC -CID V10 DOHC 40 Valve Naturally Aspirated GAS
2007, 2010 BMW X5 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2007-2008 BMW 328xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2007-2008 BMW 335xi 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2007-2008 BMW Alpina B7 4.4L 4398CC -CID V8 DOHC 32 Valve Supercharged GAS
2007-2010 BMW X3 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2007-2010 BMW Z4 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2007-2011 BMW 328i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2007-2011 BMW 335i 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2008 BMW 528xi 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2008 BMW 535xi 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2008, 2010-2012 BMW 135i 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2008-2009 BMW X5 4.8L 4837CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2008-2010 BMW X6 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2008-2011 BMW 128i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2008-2011 BMW 528i 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2008-2011 BMW 535i 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2008-2011 BMW M3 4.0L 3999CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2009-2010 BMW 528i xDrive 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2009-2011 BMW 328i xDrive 3.0L 2996CC -CID L6 DOHC 24 Valve Naturally Aspirated GAS
2009-2011 BMW 335d 3.0L 2993CC -CID L6 DOHC 24 Valve Turbocharged DIESEL
2009-2011 BMW 335i xDrive 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2009-2011 BMW 535i xDrive 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2009-2011 BMW 750Li 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2009-2011 BMW 750i 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2010 BMW 750Li xDrive 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2010-2011 BMW 535i GT 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2010-2011 BMW 550i GT 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2010-2011 BMW 760Li 6.0L 5972CC -CID V12 DOHC 48 Valve Turbocharged GAS
2011 BMW 335is 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2011 BMW 550i 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW 750i xDrive 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW Alpina B7 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW Alpina B7 xDrive 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW Alpina B7L 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW Alpina B7L xDrive 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW X5 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
2011 BMW X6 4.4L 4395CC -CID V8 DOHC 32 Valve Turbocharged GAS
2011 BMW Z4 3.0L 2979CC -CID L6 DOHC 24 Valve Turbocharged GAS
Specifications
- Brand: Motorad
- Part Number: 1CL1003
- Part Type: Engine Coolant Level Sensor
- UPC: 055644999999
- GTIN: 00055644999999
- Item Dimensions: 3.0000 x 2.6300 x 2.3800 IN
- Package Dimensions: 3.0000 x 2.6300 x 2.3800 IN
- Package Weight: 0.0600 PG
- Package Quantity: 1 EA
- Material: Plastic
- Length: 3.24
- Length: 82.30
- Color: Gray
- Terminal Type: Pin
- Mounting Hardware Included: No
- Wire Quantity: 0
- Connector Shape: Oblong
Interchange
- Motorad: 1CL1003
- BMW: 17111436257
- BMW: 17117506601
Warranty
- Warranty Type: Lifetime
- Warranty Description: Limited Lifetime
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









