P0218: Transmission Over Temperature Condition
Can you still drive? No. Stop driving and allow the transmission to cool down. Continuing to drive with an overheating transmission can result in complete transmission failure and a very expensive rebuild.
What Does P0218 Mean?
Code P0218 indicates that the transmission fluid temperature has exceeded the safe operating limit, typically above 250-270°F. Transmission fluid breaks down rapidly at high temperatures, losing its ability to lubricate and cool internal components. Sustained overheating can cause permanent damage to clutch packs, seals, and the torque converter.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Low transmission fluid level
- Clogged transmission cooler
- Failed transmission cooler lines
- Towing beyond vehicle capacity
- Worn internal transmission components creating excess friction
Symptoms
- Check engine light on
- Transmission slipping
- Harsh or delayed shifts
- Transmission warning light on
- Burning fluid smell
Diagnostic Steps
- 1Check transmission fluid level and condition (burnt smell or dark color indicates damage)
- 2Verify transmission cooler is not blocked or restricted
- 3Inspect cooler lines for leaks or kinks
- 4Monitor transmission temperature with scan tool during driving
- 5Check for proper transmission cooler fan operation
- 6Perform a transmission fluid flush and filter change if fluid is degraded
Recommended Parts & Tools
transmission fluid
transmission cooler
transmission filter kit
infrared thermometer
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $150 - $4000 |
| Parts Only (DIY) | $80 - $200 |
| Labor (1-2 hrs @ $100/hr) | $100 - $200 |
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Chat with AI About P0218Commonly Affected Vehicles
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Frequently Asked Questions
What causes a transmission to overheat?
Common causes include low fluid, towing heavy loads, a clogged cooler, or worn internal parts. Transmission fluid breaks down at high temperatures, accelerating wear and damage.
How much does a transmission rebuild cost?
A transmission rebuild typically costs $2,000-$4,000 depending on the vehicle. Catching overheating early and fixing the root cause can prevent this expensive repair.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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