BMW 135is Coolant Level Sensor Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(4)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(4)

Coolant Level Sensor Replacement Service

How much does a Coolant Level Sensor Replacement cost?

On average, the cost for a BMW 135is Coolant Level Sensor Replacement is $135 with $40 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 BMW 135isL6-3.0L TurboService typeCoolant Level Sensor ReplacementEstimate$194.39Shop/Dealer Price$231.74 - $304.42
Show example BMW 135is Coolant Level Sensor Replacement prices

What is the Coolant Level Sensor all about?

The coolant level sensor is designed to alert the driver when the coolant level is low and to prevent overheating or damage to the engine. This aids in diagnosing leaks and other dangerous cooling system conditions.

Coolant level sensors can consist of a plastic sensor with a plastic or foam float that sits underneath the coolant reservoir cap. Or, they can be plastic sensors that plug into the radiator or other component of the cooling system.

Some vehicles are equipped with a Low Coolant or Check Coolant warning light, while others may display a picture of the vehicle with a red dot in the engine bay. This is to inform the driver that the coolant needs to be checked or that there is a fault with the sensor.

Keep in mind:

The Check Coolant warning light may seem like a nuisance, but the system is there for a reason: to inform the driver of potentially dangerous engine conditions.

How it's done:

  • The Coolant Level Sensor is verified that it needs to be replaced. The coolant is drained to be below the sensor.

  • The defective Coolant Level Sensor is removed by disconnecting the electrical connection and removing it from the radiator or reservoir.

  • The new Coolant Level Sensor is installed, connected and the coolant is refilled. Then the cooling system is purged of air.

  • The Coolant Level Sensor is tested for leaks after system is filled and engine is run.

  • The vehicle is tested to ensure proper operation of the Cooling System

Our recommendation:

If you suspect the coolant level sensor has failed, have one of our licensed mechanics come to you to diagnose the issue and replace the part. Our mechanics can determine whether the sensor float is faulty, if the sensor itself is bad, or if there is low coolant or a leak in the system.

What common symptoms indicate you may need to replace the Coolant Level Sensor?

  • Check Coolant or Low Coolant light on and displays even when coolant been topped off
  • Coolant level is low but no warning lights illuminate

How important is this service?

While you may wish to ignore the beeping and warning lights in your vehicle, it is important to get a diagnosis for the problem immediately before any further damage occurs, including unwanted coolant loss, engine overheating, and other major issues.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0

Jamie

22 years of experience
98 reviews
Jamie
22 years of experience
BMW 528i L4-2.0L Turbo - Coolant Level Sensor - Rialto, California
Jamie was had great customer service and very professional. He answered all my car service concerns.

Jon

18 years of experience
7 reviews
Jon
18 years of experience
BMW 528i L4-2.0L Turbo - Coolant Level Sensor - Douglassville, Pennsylvania
On time, friendly, professional and competent! Will definitely use his service again.

Andrew

15 years of experience
510 reviews
Andrew
15 years of experience
BMW 330i L6-3.0L - Coolant Level Sensor - Vancouver, Washington
Andrew has serviced my BMW twice now and both times he was not only on time, but he was early, he’s been efficient, knowledgeable and honest. He’s communicated recommendations, never felt pressured and I will continue to request his services.

Claude

19 years of experience
29 reviews
Claude
19 years of experience
BMW X6 V8-4.4L Turbo - Coolant Level Sensor - Atlanta, Georgia
Claude is very professional and works extremely fast. He is very knowledgeable about BMW cars and I would recommend him for any future service.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0
Number of BMW Coolant Level Sensor Replacement services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

What Happens to Sensors if They are Dirty?
Car sensors can get dirty with normal use. Symptoms of dirty sensors include reduced engine power, worse gas mileage, or an engine that hesitates.
Symptoms of a Bad or Failing Barometric Sensor
Common signs include poor engine performance, like sluggish acceleration, lack of power, and misfires, as well as the Check Engine Light turning on.
How to Replace a Fuel Gauge Sender
The fuel gauge has a sender that goes bad when it says that the fuel level is different lower or higher than it actually is.

Car turned off service engine light and slip light came on

The slip light would not be caused by a crank sensor. A slip light usually involves a sensor like the speed sensor (https://www.yourmechanic.com/services/speed-sensor-replacement), or a transmission problem. The Check Engine Light may also be due to a code from the...

Code p0128

Code P0128 (https://www.yourmechanic.com/article/p0033-obd-ii-trouble-code-turbo-charger-or-supercharger-bypass-valve-control-circuit-by-john-nelson) is engaged specifically when the engine itself does not get to operating temperature in a specified time period. The only things that can cause this problem is an issue with the thermostat (https://www.yourmechanic.com/services/thermostat-replacement), head temp sensor, and...

Problem starting car and dies while driving

This sounds like it could be a faulty crankshaft sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) or a camshaft sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement). These engines had problems with both. The hard start and the backfire (https://www.yourmechanic.com/services/engine-is-backfiring-inspection) may be the camshaft sensor. The stall and no start condition...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com