P26B2 on MINI
Charge Air Cooler Coolant Pump Control Circuit
P26B2 on MINI vehicles indicates charge air cooler coolant pump control circuit. Au7o has documented this code across 1 MINI model — most commonly on Countryman. This code relates to the control circuit for the charge air cooler (intercooler) coolant pump — an electric auxiliary pump that circulates coolant through the intercooler on many turbocharged or supercharged engines to cool the compressed intake air. The engine computer commands this pump and monitors its control circuit; when the electrical signal is outside the expected range (such as an open, short, or out-of-range condition), it sets P26B2. A pump that isn't running properly can let intake air temperatures climb, reducing power and potentially triggering protective engine derating. Typical repair costs on MINI range from $400 to $1,000, depending on the specific model and root cause.
Common Causes of P26B2
- •Failed charge air cooler coolant pump
- •Corroded or loose pump connector
- •Open, shorted, or chafed wiring in the pump control circuit
- •Blown fuse or faulty relay for the pump
- •Poor ground for the pump circuit
- •Low coolant level in the intercooler loop
- •Faulty pump control driver/module or PCM (rare)
P26B2 on MINI by Model
MINI Countryman(1 issue)
- Electric Water Pump and Thermostat Failure2011-2016
The MINI Countryman with the N18 turbocharged engine develops electric water pump failures. The pump can fail internally without warning, leading to rapid overheating. The thermostat housing is also plastic and prone to cracking.
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View P26B2 across all makes →Frequently Asked Questions
What does P26B2 mean on MINI?▼
P26B2 stands for "Charge Air Cooler Coolant Pump Control Circuit." This code relates to the control circuit for the charge air cooler (intercooler) coolant pump — an electric auxiliary pump that circulates coolant through the intercooler on many turbocharged or supercharged engines to cool the compressed intake air. The engine computer commands this pump and monitors its control circuit; when the electrical signal is outside the expected range (such as an open, short, or out-of-range condition), it sets P26B2. A pump that isn't running properly can let intake air temperatures climb, reducing power and potentially triggering protective engine derating. On MINI specifically, this code is documented across 1 model.
What causes P26B2 on MINI vehicles?▼
Common causes on MINI: Failed charge air cooler coolant pump, Corroded or loose pump connector, Open, shorted, or chafed wiring in the pump control circuit, Blown fuse or faulty relay for the pump, Poor ground for the pump circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P26B2 on a MINI?▼
Repair costs on MINI range from $400 to $1,000, depending on the specific model and root cause.
Which MINI models have P26B2 documented?▼
Au7o has documented P26B2 on 1 MINI model: Countryman.