
303978 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.99 | Condition is Used, 99-03 VOLVO S80 TRANSMISSION COMPUTER MODULE 24.1 TEMEC 303978 OEM, shipping cost = $9.58 | ![]() |
![]() | $30.00 | Condition is Used, 99-03 VOLVO S80 TRANSMISSION COMPUTER MODULE 24.1 TEMEC 303978 OEM, FREE SHIPPING | 99.6% |
![]() | $21.93 | Condition is Used, 99-03 Volvo S80 TCM 2pc 30397, shipping cost = $16.56 | 94.2% |
![]() | $30.00 | Condition is Used, Volvo/Temic transmission ECU 303978 USED/UNTESTED, offered for parts/repair/core, shipping cost = $12.90 | 100.0% |
![]() | $31.99 | Condition is Used, SET 2psc Volvo ECU 303978 P09472349 and 0281001776 original K101, shipping cost = $15.00 | 100.0% |
![]() | $35.00 | Condition is Used, Working P09472349 1998 1999 Volvo V70 Tcu Gearbox Computer Temic 303978, shipping cost = $15.00 | 100.0% |
![]() | $40.00 | Condition is Used, 99-03 VOLVO S80 TRANSMISSION COMPUTER MODULE 24.1 TEMEC 303978 OEM, shipping cost = $16.77 | 100.0% |
![]() | $15.68 | Condition is Used, Volvo Gearbox ECU Control Module Unit 303978 P09472349 (F283), shipping cost = $44.38 | 100.0% |
![]() | $34.36 | Top Pick! Condition is Used, 2000 VOLVO S80 ECU 303978, shipping cost = $29.98 | 88.9% |
![]() | $34.36 | Top Pick! Condition is Used, 2001 VOLVO S80 ECU 303978, shipping cost = $29.98 | 88.9% |
![]() | $15.68 | Condition is Used, Volvo Gearbox ECU Control Module Unit 303978 P09472349 (F210), shipping cost = $49.60 | 100.0% |
![]() | $50.00 | Top Pick! Condition is Used, 99-03 VOLVO S80 TRANSMISSION COMPUTER MODULE 24.1 TEMEC 303978 OEM, shipping cost = $15.00 | 99.7% |
![]() | $33.00 | Condition is Used, 2000 VOLVO S80 ECU 303978, shipping cost = $39.00 | 100.0% |
![]() | $33.00 | Condition is Used, 2001 VOLVO S80 ECU 303978, shipping cost = $39.00 | 100.0% |
![]() | $85.00 | Condition is Used, 303978 Chassis Brain Box VOLVO 80 SERIES 99 00 01 04 05 06, FREE SHIPPING | 99.2% |
![]() | $95.00 | Condition is Used, 99-03 VOLVO S80 TRANSMISSION COMPUTER MODULE 24.1 TEMEC 303978 OEM, shipping cost = $7.13 | 100.0% |
![]() | $120.00 | Condition is Used, TEMIC TCM 303978 - P09472349, CA, 1T0002207, T99104272, 24.1 VOLVO, shipping cost = $9.35 | 100.0% |
![]() | $180.45 | Condition is Used, VOLVO S80 1999-2000-2001-2002-2003 TRANSMISSION COMPUTER MODULE 24.1 303978, shipping cost = $32.97 | 98.4% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $34.18 | Condition is Usato, 2000 Volvo S80 ECU 303978, shipping cost = $57.76 | 99.2% |
![]() | $34.18 | Top Pick! Condition is Usato, 2001 Volvo S80 ECU 303978, shipping cost = $57.76 | 99.2% |

The Volvo 303978 99-03 S80 Transmission Module 24.1 TEMEC is an essential component of the automatic transmission system in certain Volvo S80 models produced between 1999 and 2003. This module plays a significant role in the vehicle's powertrain control and communication between various transmission sensors and the engine control unit.
The 24.1 TEMEC transmission module is designed to monitor and regulate transmission functions such as gear shifting, temperature control, and pressure management. It communicates with other vehicle systems to ensure optimal transmission performance and fuel efficiency. This module is an electronic control unit (ECU) that utilizes advanced software algorithms to process data and make adjustments in real-time.
The Volvo 303978 transmission module is compact and durable, with a sleek, black design that blends seamlessly into the vehicle's engine bay. It features multiple connectors for easy integration with other transmission components and wiring harnesses. The module is also designed to withstand the rigors of automotive use, including extreme temperatures and vibration.
This transmission module is a crucial part of the Volvo S80's powertrain and is essential for maintaining the vehicle's performance and reliability. If the module fails, it can result in transmission problems such as rough shifting, delayed shifting, or even complete transmission failure. Replacing the module with a genuine Volvo part, such as the 303978 99-03 S80 Transmission Module 24.1 TEMEC, ensures a proper fit and function, as well as the peace of mind that comes with using a high-quality OEM component.
When installing the new transmission module, it is important to follow the manufacturer's instructions carefully to ensure a successful installation. This may include disconnecting the battery, draining the transmission fluid, and following proper wiring connections. It is also recommended to reset the transmission adapter learning program after installation to ensure proper shifting characteristics.
In summary, the Volvo 303978 99-03 S80 Transmission Module 24.1 TEMEC is a vital component of the automatic transmission system in select Volvo S80 models. It monitors and regulates various transmission functions and communicates with other vehicle systems to ensure optimal performance and fuel efficiency. This module is compact, durable, and easy to install with proper instructions, making it an essential part of any Volvo S80's powertrain maintenance and repair.
Pros and Cons of Buying Volvo 303978 99-03 S80 Transmission Module 24.1 (TEMec)
1. Pros:a. OEM (Original Equipment Manufacturer) Part: This part is manufactured by Volvo, ensuring compatibility and quality for your specific Volvo S80 model.
b. Improved Performance: A new transmission module can lead to improved shifting, smoother operation, and better overall performance of your vehicle's transmission system.
c. Longer Lifespan: A new part means a fresh start and the potential for a longer lifespan compared to a rebuilt or used part.
d. Peace of Mind: Purchasing a genuine Volvo part from a reputable dealer provides peace of mind knowing that the part is backed by a warranty.
2. Cons:a. Cost: Original equipment parts tend to be more expensive than aftermarket or used parts. However, the cost may be offset by the potential for longer lifespan and improved performance.
b. Installation Complexity: Installing a new transmission module can be a complex and time-consuming process, potentially requiring professional assistance.
c. Availability: Depending on the availability of the part from Volvo dealers or other authorized sellers, there may be a wait time for delivery.
3. Conclusion:The decision to buy a Volvo 303978 99-03 S80 Transmission Module 24.1 (TEMec) depends on your priorities and budget. If you value original equipment, improved performance, and peace of mind, purchasing this part from a reputable Volvo dealer may be the best choice. However, if cost is a significant concern, you may want to consider aftermarket or used options. Ultimately, the decision should be based on your specific needs and circumstances.
4. Recommendation:If you decide to proceed with the purchase of the Volvo 303978 99-03 S80 Transmission Module 24.1 (TEMec), ensure that you buy it from a reputable and authorized Volvo dealer to ensure the part's authenticity and to take advantage of any available warranties. Additionally, consider having the part installed by a professional to ensure proper installation and to minimize potential complications.
Details:
99-03 Volvo S80 transmission computer module 24.1 temec 303978 oem.
specifications perfoelectric:
- for models: S80
- for years: 1999–2003
- brand: Volvo
- mpn: 303978
- part type: Transmission Module
- country/region of manufacture: Germany
- finish: Plastic / Metal
- placement on vehicle: Front
- performance part: Yes
shipping perfoelectric:
- class: standard
- carrier: usps
- type: fixed
- service: usps ground advantage
- transit: 5-11 days
seller perfoelectric:
- city: sacramento, california
- # reviews: 29
- rating: 100.0%
general perfoelectric:
- category: Auto Parts > Electrical Components
offer perfoelectric:
- prices: $15.68–$180.45
- item condition:
- Used
- Usato
- best offers: true
- in stock #: 5
- sold #: 19
- started: march 16, 2025
- options: ship-to-home
- availability: in stock
payments perfoelectric:
- credit card: discover
- wallet: google-pay
- other
returns perfoelectric:
- time: 30 days
- paid by: buyer
- policy: returns accepted
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