BMW Coolant Temperature Sensor 13621703993
OEM Part #: 13-62-1-703-993 (13621703993)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Coolant Temp Sensor / Thermal Switch that may fit your vehicle
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The OEM Coolant Temperature Sensor plays a critical role in monitoring the engine's temperature, located near the engine block or coolant outlet. This sensor communicates with the engine control unit (ECU) to provide real-time temperature readings, ensuring optimal engine performance and preventing overheating. Common issues may arise due to wear or thermal fatigue, leading to erratic gauge readings or coolant leaks. This part, compatible with BMW models including the 840Ci (1996-1997), Z3 (1996-2002), M5, and others across various years, is essential for maintaining engine efficiency. OEM part number Bosch 1703993 serves as a reliable replacement. Ensure smooth engine operation with this genuine component sourced directly from donor vehicles.
Specifications
| Fits Vehicle Model | 318i, 318is, 318ti, 323i, 328i, 525i, 528i, 530i, 540i, 740i, 740iL, 750iL, 840Ci, 850Ci, M3, M5, X5, Z3, Z8 |
| Fits Vehicle Make | BMW |
| OEM Part No | 13-62-1-703-993 (13621703993) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 128 vehicle configurations across 1 make, 1995-2006.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 128 vehicle configurations — 11 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1995 | BMW | 750iL | Sedan | 5.4L V12 | |
| 1995 | BMW | 850Ci | Coupe | 5.4L V12 | |
| 1996 | BMW | 318i | Convertible | 1.9L l4 | |
| 1996 | BMW | 318i | Sedan | 1.9L l4 | |
| 1996 | BMW | 318is | Coupe | 1.9L l4 | |
| 1996 | BMW | 318ti | Hatchback | 1.9L l4 | |
| 1996 | BMW | 328i | Convertible | 2.8L l6 | |
| 1996 | BMW | 328i | Sedan | 2.8L l6 | |
| 1996 | BMW | 740iL | Sedan | 4.4L V8 | |
| 1996 | BMW | 750iL | Sedan | 5.4L V12 | |
| 1996 | BMW | 840Ci | Coupe | 4.4L V8 | |
| 1996 | BMW | 850Ci | Coupe | 5.4L V12 | |
| 1996 | BMW | M3 | Coupe | 3.2L l6 | |
| 1996 | BMW | Z3 | Roadster Convertible | 1.9L l4 | |
| 1997 | BMW | 318i | Convertible | 1.9L l4 | |
| 1997 | BMW | 318i | Sedan | 1.9L l4 | |
| 1997 | BMW | 318is | Coupe | 1.9L l4 | |
| 1997 | BMW | 318ti | Hatchback | 1.9L l4 | |
| 1997 | BMW | 328i | Convertible | 2.8L l6 | |
| 1997 | BMW | 328i | Sedan | 2.8L l6 | |
| 1997 | BMW | 528i | Sedan | 2.8L l6 | |
| 1997 | BMW | 540i | Sedan | 4.4L V8 | |
| 1997 | BMW | 740i | Sedan | 4.4L V8 | |
| 1997 | BMW | 740iL | Sedan | 4.4L V8 | |
| 1997 | BMW | 750iL | Sedan | 5.4L V12 | |
| 1997 | BMW | 840Ci | Coupe | 4.4L V8 | |
| 1997 | BMW | 850Ci | Coupe | 5.4L V12 | |
| 1997 | BMW | M3 | Coupe | 3.2L l6 | |
| 1997 | BMW | M3 | Sedan | 3.2L l6 | |
| 1997 | BMW | Z3 | Roadster Convertible | 1.9L l4 | |
| 1997 | BMW | Z3 | Roadster Convertible | 2.8L l6 | |
| 1998 | BMW | 318i | Sedan | 1.9L l4 | |
| 1998 | BMW | 318ti | Hatchback | 1.9L l4 | |
| 1998 | BMW | 323i | Convertible | 2.5L l6 | |
| 1998 | BMW | 328i | Convertible | 2.8L l6 | |
| 1998 | BMW | 328i | Sedan | 2.8L l6 | |
| 1998 | BMW | 528i | Sedan | 2.8L l6 | For Vehicles With Production Date Up To 09/1998 |
| 1998 | BMW | 540i | Sedan | 4.4L V8 | |
| 1998 | BMW | 740i | Sedan | 4.4L V8 | |
| 1998 | BMW | 740iL | Sedan | 4.4L V8 | |
| 1998 | BMW | 750iL | Sedan | 5.4L V12 | For Vehicles With Production Date Up To 09/1998 |
| 1998 | BMW | M3 | Convertible | 3.2L l6 | |
| 1998 | BMW | M3 | Coupe | 3.2L l6 | |
| 1998 | BMW | M3 | Sedan | 3.2L l6 | |
| 1998 | BMW | Z3 | Roadster Convertible | 3.2L l6 | |
| 1998 | BMW | Z3 | Roadster Convertible | 1.9L l4 | |
| 1998 | BMW | Z3 | Roadster Convertible | 2.8L l6 | For Vehicles With Production Date Up To 09/1998 |
| 1999 | BMW | 323i | Convertible | 2.5L l6 | |
| 1999 | BMW | 328i | Convertible | 2.8L l6 | |
| 1999 | BMW | 528i | Sedan | 2.8L l6 | For Vehicles With Production Date Up To 09/1998 |
| 1999 | BMW | 528i | Wagon | 2.8L l6 | For Vehicles with Production Date After 09/1998 |
| 1999 | BMW | 540i | Sedan | 4.4L V8 | |
| 1999 | BMW | 540i | Wagon | 4.4L V8 | |
| 1999 | BMW | 740i | Sedan | 4.4L V8 | |
| 1999 | BMW | 740iL | Sedan | 4.4L V8 | |
| 1999 | BMW | 750iL | Sedan | 5.4L V12 | For Vehicles with Production Date After 09/1998 |
| 1999 | BMW | M3 | Convertible | 3.2L l6 | |
| 1999 | BMW | M3 | Coupe | 3.2L l6 | |
| 1999 | BMW | Z3 | Coupe | 3.2L l6 | |
| 1999 | BMW | Z3 | Roadster Convertible | 3.2L l6 | |
| 1999 | BMW | Z3 | Roadster Convertible | 2.8L l6 | For Vehicles With Production Date Up To 09/1998 |
| 2000 | BMW | 528i | Sedan | 2.8L l6 | For Vehicles with Production Date After 09/1998 |
| 2000 | BMW | 528i | Wagon | 2.8L l6 | For Vehicles with Production Date After 09/1998 |
| 2000 | BMW | 540i | Sedan | 4.4L V8 | |
| 2000 | BMW | 540i | Wagon | 4.4L V8 | |
| 2000 | BMW | 740i | Sedan | 4.4L V8 | |
| 2000 | BMW | 740iL | Sedan | 4.4L V8 | |
| 2000 | BMW | 750iL | Sedan | 5.4L V12 | For Vehicles with Production Date After 09/1998 |
| 2000 | BMW | M5 | Sedan | 5.0L V8 | |
| 2000 | BMW | X5 | SUV | 4.4L V8 | |
| 2000 | BMW | Z3 | Coupe | 2.8L l6 | |
| 2000 | BMW | Z3 | Coupe | 3.2L l6 | |
| 2000 | BMW | Z3 | Roadster Convertible | 3.2L l6 | |
| 2000 | BMW | Z3 | Roadster Convertible | 2.5L l6 | |
| 2000 | BMW | Z3 | Roadster Convertible | 2.8L l6 | |
| 2000 | BMW | Z8 | Convertible | 5.0L V8 | |
| 2001 | BMW | 525i | Sedan | 2.5L l6 | |
| 2001 | BMW | 525i | Wagon | 2.5L l6 | |
| 2001 | BMW | 530i | Sedan | 3.0L l6 | |
| 2001 | BMW | 540i | Sedan | 4.4L V8 | |
| 2001 | BMW | 540i | Wagon | 4.4L V8 | |
| 2001 | BMW | 740i | Sedan | 4.4L V8 | |
| 2001 | BMW | 740iL | Sedan | 4.4L V8 | |
| 2001 | BMW | 750iL | Sedan | 5.4L V12 | For Vehicles with Production Date After 09/1998 |
| 2001 | BMW | M5 | Sedan | 5.0L V8 | |
| 2001 | BMW | X5 | SUV | 3.0L l6 | |
| 2001 | BMW | X5 | SUV | 4.4L V8 | |
| 2001 | BMW | Z3 | Coupe | 3.0L l6 | |
| 2001 | BMW | Z3 | Coupe | 3.2L l6 | |
| 2001 | BMW | Z3 | Roadster Convertible | 3.2L l6 | |
| 2001 | BMW | Z3 | Roadster Convertible | 2.5L l6 | |
| 2001 | BMW | Z3 | Roadster Convertible | 3.0L l6 | |
| 2001 | BMW | Z8 | Convertible | 5.0L V8 | |
| 2002 | BMW | 525i | Sedan | 2.5L l6 | |
| 2002 | BMW | 525i | Wagon | 2.5L l6 | |
| 2002 | BMW | 530i | Sedan | 3.0L l6 | |
| 2002 | BMW | 540i | Sedan | 4.4L V8 | |
| 2002 | BMW | 540i | Wagon | 4.4L V8 | |
| 2002 | BMW | M5 | Sedan | 5.0L V8 | |
| 2002 | BMW | X5 | SUV | 3.0L l6 | |
| 2002 | BMW | X5 | SUV | 4.4L V8 | |
| 2002 | BMW | X5 | SUV | 4.6L V8 | |
| 2002 | BMW | Z3 | Coupe | 3.0L l6 | |
| 2002 | BMW | Z3 | Coupe | 3.2L l6 | |
| 2002 | BMW | Z3 | Roadster Convertible | 3.2L l6 | |
| 2002 | BMW | Z3 | Roadster Convertible | 2.5L l6 | |
| 2002 | BMW | Z3 | Roadster Convertible | 3.0L l6 | |
| 2002 | BMW | Z8 | Convertible | 5.0L V8 | |
| 2003 | BMW | 525i | Sedan | 2.5L l6 | |
| 2003 | BMW | 525i | Wagon | 2.5L l6 | |
| 2003 | BMW | 530i | Sedan | 3.0L l6 | |
| 2003 | BMW | 540i | Sedan | 4.4L V8 | |
| 2003 | BMW | 540i | Wagon | 4.4L V8 | |
| 2003 | BMW | M5 | Sedan | 5.0L V8 | |
| 2003 | BMW | X5 | SUV | 3.0L l6 | |
| 2003 | BMW | X5 | SUV | 4.4L V8 | |
| 2003 | BMW | X5 | SUV | 4.6L V8 | |
| 2003 | BMW | Z8 | Convertible | 4.8L V8 | |
| 2003 | BMW | Z8 | Convertible | 5.0L V8 | |
| 2004 | BMW | X5 | SUV | 3.0L l6 | |
| 2004 | BMW | X5 | SUV | 4.4L V8 | |
| 2004 | BMW | X5 | SUV | 4.8L V8 | |
| 2005 | BMW | X5 | SUV | 3.0L l6 | |
| 2005 | BMW | X5 | SUV | 4.4L V8 | |
| 2005 | BMW | X5 | SUV | 4.8L V8 | |
| 2006 | BMW | X5 | SUV | 3.0L l6 | |
| 2006 | BMW | X5 | SUV | 4.4L V8 | |
| 2006 | BMW | X5 | SUV | 4.8L V8 |