# Brake pad wear sensor, BMW

**URL:** <https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161>\
**Category:** Maintenance/Repairs\
**Created:** [September 5, 2007, 12:34am UTC](https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161 "2007-09-05T00:34:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![lhelland](https://avatars.discourse-cdn.com/v4/letter/l/ac91a4/32.png) [@lhelland](https://community.cartalk.com/u/lhelland)\
**Post date:** [September 5, 2007, 12:34am UTC](https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161/1 "2007-09-05T00:34:53Z")

</div>

What percentage of wear is left on the brake pads of a BMW 325 when the wear sensor light comes on?

---

<div class="post-metadata">

**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [September 5, 2007, 1:36am UTC](https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161/2 "2007-09-05T01:36:25Z")

</div>

Enough to drive to your mechanic? Do you want the cheap fix or the pricier fix?

---

<div class="post-metadata">

**Author:** ![cappy208](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cappy208/32/31_2.png) [@cappy208](https://community.cartalk.com/u/cappy208)\
**Post date:** [September 5, 2007, 2:05am UTC](https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161/3 "2007-09-05T02:05:00Z")

</div>

it depends on how hard you drive, how long you have been driving without realizing the light was on, and how much $$ you want to spend on brake repairs.

---

<div class="post-metadata">

**Author:** ![Craig58](https://avatars.discourse-cdn.com/v4/letter/c/3da27b/32.png) [@Craig58](https://community.cartalk.com/u/Craig58)\
**Post date:** [September 5, 2007, 2:24am UTC](https://community.cartalk.com/t/brake-pad-wear-sensor-bmw/4161/4 "2007-09-05T02:24:18Z")

</div>

I don’t know on your car, I would ask a bmw shop or take a look at the sensor location in a new bake pad. On my benz, there is still 20-25% left when the light starts to come on. Plenty of time to order parts, make an appointment, etc., but don’t wait too long or you will risk overextending the caliper piston. Better too soon than too late.