Avoid ATE Typ 200 brake fluid

IVM3 · 07-20-2021, 03:50 PM

I'm sharing this hoping it saves someone from unnecessary costs and time fixing a squeaky brake pedal caused by the master cylinder. The bottom line is that ATE Typ 200 is not low viscocity fluid and for some reason it causes our master cylinder to eventually develop a squeak. This appears to be a common issue on Porsches using ATE 200 fluid. Here is an example thread with video of the same pedal squeak I had.

https://www.planet-9.com/threads/bra...queaky.245214/

More details if you're interested:
I have used ATE brake fluid on multiple cars in the past with no issues. A few months after flushing my brake fluid with ATE, I developed a slight squeaking sound from the brake pedal, coming from the master cylinder. It was most noticeable on light braking when releasing the brake. I ended up replacing the master cylinder (thinking it was defective) and filling it with ATE fluid, which fixed the issue. A few months later, after a couple of light track days, I decided to flush with fresh ATE fluid again. In the middle of flushing, the squeak came back. At that point, I suspected it was the brake fluid causing the noise and did some research. I quickly found that this appears to be a common issue on Porsches using ATE fluid. I decided to re-flush with genuine BMW brake fluid (which is low viscocity), and after flushing about 24 ounces of BMW fluid through, the squeaking completely stopped. The bmw fluid fixed the issue and it has been fine for a couple months now. I ended up unnecessarily replacing the master cylinder when the issue was the ATE brake fluid. Hope this saves someone from the same experience.

swagon · 07-21-2021, 02:39 PM

Can confirm!

hC1001 · 07-23-2021, 04:22 PM

Interesting... Been using ATE TYP 200/super blue in all my cars for the last 2 decades... Havent had any squeaks.

I installed TYP 200 in the F80 on 1/2020 and just flushed it with new TYP 200 on 6/2021 for a track event. No squeaks either.

Thanks for sharing though. Might help someone who does have a squeaky pedal...

icegrill · 07-24-2021, 01:44 PM

I'm a little skeptical of this…..I've used ate for years with no issues.

IVM3 · 07-24-2021, 04:21 PM

Quote:

Originally Posted by icegrill

I'm a little skeptical of this…..I've used ate for years with no issues.

I can understand the skepticism but I can't come up with any other explanation for the squeaky pedal. When I flushed with bmw brake fluid, it stopped after flushing about 24 oz of fluid through using the manual 2 person method (same procedure as the ATE fluid flush) . The fact this squeaking happened across two master cylinders, and the many threads of people with Porsches dealing with the exact same issue using ATE fluid, has me convinced its the fluid. If anyone has a better explanation, I'd love to hear it.

I've also been using ATE for almost 20 years with no issues until now.

JamesGames · 07-24-2021, 05:18 PM

Quote:

Originally Posted by IVM3

I can understand the skepticism but I can't come up with any other explanation for the squeaky pedal. When I flushed with bmw brake fluid, it stopped after flushing about 24 oz of fluid through using the manual 2 person method (same procedure as the ATE fluid flush) . The fact this squeaking happened across two master cylinders, and the many threads of people with Porsches dealing with the exact same issue using ATE fluid, has me convinced its the fluid. If anyone has a better explanation, I'd love to hear it.

I've also been using ATE for almost 20 years with no issues until now.

I used ATE Blue for many years and never had an issue as well until it got discontinued or what not. When it came time to swap fluid on the F8X about 3 years ago, I did see the numerous threads on porsche sites that showed ATE 200 causing some viscosity issues / squeaks, so I think you are definitely onto something.

I ended up using OE BMW Fluid and no issues.

hellokitty · 07-26-2021, 01:15 AM

No issues with Castrol SRF here but I was considering ATE at some point. Good to know.

POBEP · 08-15-2022, 01:33 AM

Quote:

Originally Posted by IVM3

I'm sharing this hoping it saves someone from unnecessary costs and time fixing a squeaky brake pedal caused by the master cylinder. The bottom line is that ATE Typ 200 is not low viscocity fluid and for some reason it causes our master cylinder to eventually develop a squeak. This appears to be a common issue on Porsches using ATE 200 fluid. Here is an example thread with video of the same pedal squeak I had.

https://www.planet-9.com/threads/bra...queaky.245214/

More details if you're interested:
I have used ATE brake fluid on multiple cars in the past with no issues. A few months after flushing my brake fluid with ATE, I developed a slight squeaking sound from the brake pedal, coming from the master cylinder. It was most noticeable on light braking when releasing the brake. I ended up replacing the master cylinder (thinking it was defective) and filling it with ATE fluid, which fixed the issue. A few months later, after a couple of light track days, I decided to flush with fresh ATE fluid again. In the middle of flushing, the squeak came back. At that point, I suspected it was the brake fluid causing the noise and did some research. I quickly found that this appears to be a common issue on Porsches using ATE fluid. I decided to re-flush with genuine BMW brake fluid (which is low viscocity), and after flushing about 24 ounces of BMW fluid through, the squeaking completely stopped. The bmw fluid fixed the issue and it has been fine for a couple months now. I ended up unnecessarily replacing the master cylinder when the issue was the ATE brake fluid. Hope this saves someone from the same experience.

IVM3 - thanks for posting.
I flushed my F25 with ATE Typ 200 - the brake pedal became super noisy.
SO suggested that I am paranoid at first, until we stoped at the traffic light.
I am going to re-flush it with BMW branded one next week.

TopJimmy · 08-15-2022, 12:18 PM

I appreciate the heads-up. There's two new bottles of Até 200 on my bench now being returned to FCP. I guess I'll go with Motul.

hC1001 · 08-15-2022, 11:29 PM

Just reporting my experience so far. Still no sqeaking with ATE TYP200. Been using it on the F80 since 1/20. I will admit that i dont put a lot of miles on the car. Been around 5k miles in that period with a track weekend and 1 fluid change in 6/21.

NYG · 08-16-2022, 01:20 PM

SRF or nothing.

wrongmark · 02-11-2023, 04:10 AM

Glad I found this thread. I’ve also been using Type 200 in my E90 for years but now have a squeaky master cylinder in my F30 after using it. Off to the dealer to buy the genuine stuff to see if it cures it.

Update: no threads about this on F30 forums but I flushed today with 1.5 litres of BMW fluid using pressure bleeder and also pumping the pedal a couple of times during. Squeak still there. Going to leave it a bit and see if anything changes.

POBEP · 02-12-2023, 08:58 AM

I had similar experience - after a 3 bottles/1L of the BMW fluid pedal noise did not go away completely, but significantly reduced to semi-acceptable level.

I’ll be replacing calipers this summer on F25 (bigger brake upgrade) - will report if pedal noise disappears after second flush.

My plan is to use ATE, but this time I’ll go with LV spec fluid

D4T · 06-04-2023, 02:53 AM

Just wanted to add to this incase it helps some other people out there and also ask a question.

Firstly I recently flushed BMW fluid for ATE 200 in my F10 M5 and within 150 miles have a squeaky pedal so it’s definitely the fluid and effects F10 M5’s too.

Secondly does the ATE 200 fluids viscosity cause any other issues? My brakes feel good but I don’t want it to damage the master cylinder or anything… is it safe to leave in there until my next brake fluid change and put up with the noise or should I get it flushed ASAP?

wrongmark · 06-09-2023, 09:11 AM

Quote:

Originally Posted by D4T

Just wanted to add to this incase it helps some other people out there and also ask a question.

Firstly I recently flushed BMW fluid for ATE 200 in my F10 M5 and within 150 miles have a squeaky pedal so it’s definitely the fluid and effects F10 M5’s too.

Secondly does the ATE 200 fluids viscosity cause any other issues? My brakes feel good but I don’t want it to damage the master cylinder or anything… is it safe to leave in there until my next brake fluid change and put up with the noise or should I get it flushed ASAP?

Hard to say whether it does any damage. I did notice a dried up drip of something (possibly brake fluid, possibly not) on the rubber boot of the master cylinder when retrofitting my electric seat recently. I cleaned it and need to recheck it soon. Squeak still there for me although reduced significantly after flushing with BMW fluid and I’m planning another flush soon.

Personally, I would flush it with LV fluid sooner rather than later.

Funkymonkey · 01-27-2024, 05:57 PM

I flushed with ate about a month ago and the squeak came. Just today I flushed with OEM brake fluid and after 1.6 liters it just went away. We flushed about a liter from the rear. After a few pumps on the front the squeak was gone.

I only drove 200km with ate. It's possible damage can be done if left longer.

M3SQRD · 01-27-2024, 07:21 PM

Unless you’re tracking your car regularly, you should use a low viscosity (LV) brake fluid which is what BMW designed the car to use and what BMW oem fluid has been for 15+ years. Normal viscosity (NV) brake fluids can affect the DSC and ABS systems performance. NV is fine on dedicated track cars because the viscosity of NV brake fluid drops with temperature and its viscosity at track temperatures is close enough to LV viscosity to not cause issues. I use Motul LV DOT 4/5.1 brake fluid on the street, and Red Line RL-700 or AP Racing R4 for the track.

07-20-2021, 03:50 PM	#1
IVM3 First Lieutenant 288 Rep 343 Posts Drives: 2016 M3 Join Date: Apr 2020 Location: USA iTrader: (0)	Avoid ATE Typ 200 brake fluid - causes squeaky pedal I'm sharing this hoping it saves someone from unnecessary costs and time fixing a squeaky brake pedal caused by the master cylinder. The bottom line is that ATE Typ 200 is not low viscocity fluid and for some reason it causes our master cylinder to eventually develop a squeak. This appears to be a common issue on Porsches using ATE 200 fluid. Here is an example thread with video of the same pedal squeak I had. https://www.planet-9.com/threads/bra...queaky.245214/ More details if you're interested: I have used ATE brake fluid on multiple cars in the past with no issues. A few months after flushing my brake fluid with ATE, I developed a slight squeaking sound from the brake pedal, coming from the master cylinder. It was most noticeable on light braking when releasing the brake. I ended up replacing the master cylinder (thinking it was defective) and filling it with ATE fluid, which fixed the issue. A few months later, after a couple of light track days, I decided to flush with fresh ATE fluid again. In the middle of flushing, the squeak came back. At that point, I suspected it was the brake fluid causing the noise and did some research. I quickly found that this appears to be a common issue on Porsches using ATE fluid. I decided to re-flush with genuine BMW brake fluid (which is low viscocity), and after flushing about 24 ounces of BMW fluid through, the squeaking completely stopped. The bmw fluid fixed the issue and it has been fine for a couple months now. I ended up unnecessarily replacing the master cylinder when the issue was the ATE brake fluid. Hope this saves someone from the same experience.
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07-21-2021, 02:39 PM	#2
swagon Major General 13507 Rep 8,160 Posts Drives: F80 6MT Join Date: Jun 2013 Location: . iTrader: (0)	Can confirm! __________________
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07-23-2021, 04:22 PM	#3
hC1001 Captain 591 Rep 986 Posts Drives: E36 M3, F80 M3 Join Date: Nov 2019 Location: Brooklyn, NY iTrader: (4)	Interesting... Been using ATE TYP 200/super blue in all my cars for the last 2 decades... Havent had any squeaks. I installed TYP 200 in the F80 on 1/2020 and just flushed it with new TYP 200 on 6/2021 for a track event. No squeaks either. Thanks for sharing though. Might help someone who does have a squeaky pedal...
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07-24-2021, 01:44 PM	#4
icegrill Lieutenant Colonel 2078 Rep 1,780 Posts Drives: 2015 M3 Join Date: Jan 2018 Location: Oregon iTrader: (3)	I'm a little skeptical of this…..I've used ate for years with no issues.
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07-26-2021, 01:15 AM	#7
hellokitty Brigadier General 2894 Rep 3,726 Posts Drives: '17 M3 ZCP DCT Join Date: Jul 2010 Location: Southern California iTrader: (2)	No issues with Castrol SRF here but I was considering ATE at some point. Good to know. __________________ 2017 F80 M3 ZCP / AA GESI DPs / Akrapovic Evo / BBS FI-R 19" / Bend Calibration ECUTEK Flex Fuel \| Bilstein B16 DDC + CS EDC / BMC Filters / BMS OCC / CSF HE / ESS CP / Nitto NT555R2 / PD Crank Hub / SPL Suspension / Uniden R7 / Wagner Top Mount IC 2021 Mini GP3 / BMC Filters / BM3 / Cary Jordan E30 / Wagner IC / Remus Race
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08-15-2022, 12:18 PM	#9
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	I appreciate the heads-up. There's two new bottles of Até 200 on my bench now being returned to FCP. I guess I'll go with Motul. __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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08-15-2022, 11:29 PM	#10
hC1001 Captain 591 Rep 986 Posts Drives: E36 M3, F80 M3 Join Date: Nov 2019 Location: Brooklyn, NY iTrader: (4)	Just reporting my experience so far. Still no sqeaking with ATE TYP200. Been using it on the F80 since 1/20. I will admit that i dont put a lot of miles on the car. Been around 5k miles in that period with a track weekend and 1 fluid change in 6/21.
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08-16-2022, 01:20 PM	#11
NYG Brigadier General 10580 Rep 3,643 Posts Drives: Corvette Z06 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	SRF or nothing.
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02-11-2023, 04:10 AM	#12
wrongmark Second Lieutenant 98 Rep 256 Posts Drives: E90 320i, F31 328i Join Date: Feb 2016 Location: South Yorkshire iTrader: (0)	Glad I found this thread. I’ve also been using Type 200 in my E90 for years but now have a squeaky master cylinder in my F30 after using it. Off to the dealer to buy the genuine stuff to see if it cures it. Update: no threads about this on F30 forums but I flushed today with 1.5 litres of BMW fluid using pressure bleeder and also pumping the pedal a couple of times during. Squeak still there. Going to leave it a bit and see if anything changes. Last edited by wrongmark; 02-11-2023 at 04:45 PM.. Reason: Update
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02-12-2023, 08:58 AM	#13
POBEP Lieutenant 361 Rep 552 Posts Drives: E70 E90 E91 Join Date: Mar 2016 Location: Christmas Valley, CA iTrader: (0) Garage List 2011 E90 335d [9.33] 2013 E70 xDrive35d [5.00] 2009 E91 328i [10.00] 2016 F25 xDrive28d [0.00]	I had similar experience - after a 3 bottles/1L of the BMW fluid pedal noise did not go away completely, but significantly reduced to semi-acceptable level. I’ll be replacing calipers this summer on F25 (bigger brake upgrade) - will report if pedal noise disappears after second flush. My plan is to use ATE, but this time I’ll go with LV spec fluid __________________
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06-04-2023, 02:53 AM	#14
D4T Private 11 Rep 51 Posts Drives: 2013 F10 M5 LCI Join Date: Dec 2020 Location: UK iTrader: (0)	Just wanted to add to this incase it helps some other people out there and also ask a question. Firstly I recently flushed BMW fluid for ATE 200 in my F10 M5 and within 150 miles have a squeaky pedal so it’s definitely the fluid and effects F10 M5’s too. Secondly does the ATE 200 fluids viscosity cause any other issues? My brakes feel good but I don’t want it to damage the master cylinder or anything… is it safe to leave in there until my next brake fluid change and put up with the noise or should I get it flushed ASAP?
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01-27-2024, 05:57 PM	#16
Funkymonkey Registered 0 Rep 4 Posts Drives: M2 2017 Join Date: Oct 2023 Location: Vancouver iTrader: (0)	I flushed with ate about a month ago and the squeak came. Just today I flushed with OEM brake fluid and after 1.6 liters it just went away. We flushed about a liter from the rear. After a few pumps on the front the squeak was gone. I only drove 200km with ate. It's possible damage can be done if left longer. Last edited by Funkymonkey; 02-02-2024 at 02:55 AM..
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01-27-2024, 07:21 PM	#17
M3SQRD Major General 2103 Rep 5,494 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	Unless you’re tracking your car regularly, you should use a low viscosity (LV) brake fluid which is what BMW designed the car to use and what BMW oem fluid has been for 15+ years. Normal viscosity (NV) brake fluids can affect the DSC and ABS systems performance. NV is fine on dedicated track cars because the viscosity of NV brake fluid drops with temperature and its viscosity at track temperatures is close enough to LV viscosity to not cause issues. I use Motul LV DOT 4/5.1 brake fluid on the street, and Red Line RL-700 or AP Racing R4 for the track.
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