13 Reviews for GAS 1.2 Bar Coolant Cap

• Best ever. - Sunday, November 24, 2024
  It’s the perfect solution. It solved my coolant leaks between the engine and transmission due to high pressure.
• As Advertised - 2002 BMW 325i - Saturday, March 16, 2024
  Cap looks to be finished nicely. I prefer the ergonomics of this one over the original plastic. Fits as it should. Snugs down and loosens properly.
• Great design 2002 bmw 330ci - Wednesday, March 13, 2024
  Expansion tank got a hole from the belt rubbing on it had this cap on and gratefully made it home without the car overheating at all or dripping cooling unless I slowled down
• M54 M52 Cap - Wednesday, March 6, 2024
  Very smart looking cap. Great quality feel. I'll swap this between my summer and winter cars (e46 M52TU / e39 M54) as they roll into their driving seasons. Good peace of mind knowing the system pressure is lower and that means longer MTBF of stressed items like coolant reservoirs and radiators. Got one for my daughter's daily e36 M52 too. Hopefully it will reduce its consumption of coolant reservoirs. The new ones only seem to last a year or two.
• 2004 BMW 330i ZHP - Wednesday, November 8, 2023
  This expansion tank cap saved my coolant system during some spirited driving this past summer. A coolant system rebuild was on the docket anyway, but while I was running (probably) original plumbing, this cap gave my vehicle the extra cushion between a bad day and a tragedy. Great work from GAS, as usual.
• M54B30 swapped 99’ E46 323i - Wednesday, October 4, 2023
  After replacing my upper and lower radiator hoses with silicone, my radiator with aluminum, and my water pump with Stewart, the GAS 1.2 bar radiator expansion tank cap is a “chef’s kiss” to my build and a piece of mind during spirited drives. A+
• 1999 540i BMW 6spd manual - Friday, September 22, 2023
  I recently purchased the GAS 1.2 Bar Coolant Cap and I love it. The design is cool and the weight of it shows the high quality of it as well. I had done a cooling system overhaul earlier this year. So this is a great addition to the job.
  
• 2004 bmw 325ci - Thursday, September 21, 2023
  Nice quality fast shipping!
• Great replacement cap (2004 e46 330ci) - Thursday, June 22, 2023
  Very well made cap, had a nice weight to it and a must have. Doing a cooling system overhaul and this was recommended on a online forum, couldn’t be more satisfied, super nice finish
• I see why there's an option. - Sunday, December 27, 2020
  The GERMAN AUTO SOLUTIONS logo doesn't line up, it faces almost completely the wrong direction. This is obviously why there's an option to purchase the cap without the logo. I wish I had known that. Other than that it seems to work fine.
  
  G.A.S. Response - Thank you for your feedback. We have sold thousands of these without complaints about the logo but you do bring up a valid point. The cap fits dozens of different BMW and aftermarket coolant tanks and the logo only indexes properly on some of them. I will add an "Options Description" tab on the product page to explain this to hopefully prevent any disappointment about indexing in the future.
• Works great! 2005 m54 x5 - Thursday, August 6, 2020
  Installed on my 2005 x5 a few years back and zero issues. Ordering one for the 540 right now!
• Heavily but tastefully modded & still N/A 540i 02 - Tuesday, June 9, 2020
  I've been running this cap for some time now and I'm very pleased! After I addressed my aux fan (over looked after so long of it not being an issue) it was smooth sailing. This is from someone who believes in few red lines a day (my daily, still, for now). Can't beat that look in the bay either! Haven't seen a better cap around & I sure ain't looking.
  Amani Willis
• Great looking Cap - Sunday, July 14, 2019
  Really beautiful cap and very well made. Added piece of mind that I'm protecting my cooling system from failure.