Where is the fan relay located in the Volkswagen Tiguan?
3 Answers
There is no fan relay in the Volkswagen Tiguan. The air conditioning relay is located below the steering wheel. Here are the specific details about relays: 1. An electrical device: A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the input quantity reaches a certain value. 2. Function of the air conditioning relay: It acts as a switch to control the start and stop of the air conditioning. When the temperature inside the vehicle drops below a certain level, the sensor will cause the relay to stop the air conditioning's cooling action. When the temperature inside the vehicle rises above a certain level, the sensor will cause the relay to start the air conditioning's cooling action.
I've worked on quite a few Tiguan models, and the fan relay usually hides in the engine compartment fuse box. The exact location depends on your car's year. For older Tiguan models (pre-2017), pop the hood and look for the black box near the windshield on the left side – the main cooling fan relay sits at the position labeled SC37. For the newer Tiguan L, it's typically in the lower layer of the fuse holder on the driver's side, and you'll need to remove the plastic cover to spot it. Remember to turn off the ignition before searching – the fuse box cover's backside has a location diagram, and the relay marked with a fan icon is the one. By the way, if the fan isn't spinning but the relay is fine, chances are the temperature sensor or fan resistor is acting up. Before summer drives, it's wise to check if the radiator fins feel scalding hot.
Just helped my sister find this in her Tiguan last week. The spare location is hidden behind the small storage compartment under the steering wheel. You need to pull out the storage box first, and there are several black square relays vertically inserted on the metal frame behind it. Most of the ones labeled with numbers 3 or 5 control the fans. But I discovered something new—a mechanic once mentioned that the small black box next to the battery in the engine compartment could also be an alternative location. If you're replacing it yourself, remember to buy the genuine relay with model number 5Q0951251A, as aftermarket parts tend to overheat and deform. It's best to wear insulated gloves when working on it—last time, my fingernail touched metal and caused sparks to fly.
