Heater Fix Reviews 

42
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TrustScore 4.5 out of 5

4.7

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Rated 5 out of 5 stars

Worked perfectly - well designed. Appreciate all the design effort that went into making this. Yes, it's 3d printed parts which some folks think should be sold cheaply, but I'm happy to pay for th... See more

Company replied

Rated 5 out of 5 stars

I emailed Peter prior to ordering the parts to repair my 2016 BMW X1 that was blowing hot air on the driver side and cold air on the passenger side. He was very helpful and recommended both a broken s... See more

Company replied

Rated 5 out of 5 stars

My BMW X1 passenger-side heat/AC was stuck blowing outside-temperature air. BMW’s fix was basically “replace the entire heater box” for $4,000+. Heater-Fix had a repair kit for the broken blend-door... See more

Company replied

Rated 4 out of 5 stars

Product worked well to fix my mini cooper’s ac issues. Website directions were pretty good, but a video explaining some steps would be useful. It was a little scary cutting into my car without compl... See more

Company details

  1. Car Parts Manufacturer

Written by the company

Heater-Fix specializes in providing innovative repair solutions for BMW and MINI vehicle heating systems. Their flagship product addresses the common issue of temperature discrepancies between the left and right air vents, as well as resolving fault codes 801189 and 801126 related to engine mixed air initialization errors. Heater-Fix offers comprehensive repair kits, including parts and tools, designed to restore proper heater function and ensure consistent cabin comfort. Their products are tailored for DIY enthusiasts and professionals alike, making heater repairs accessible and efficient


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

42 reviews

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4.7

All reviews

(42)

38 reviews in the last 12 months

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Rated 5 out of 5 stars

Worked perfectly on 2017 X1 (F48 LHD)

Worked perfectly - well designed. Appreciate all the design effort that went into making this. Yes, it's 3d printed parts which some folks think should be sold cheaply, but I'm happy to pay for the work that went into the design.

Recommend you clarify on the website that this works well on older models (2017 f48 x1 lhd) with a broken shaft.

7 September 2026
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Reply from Heater Fix

Hi!
Thank you for the five stars.
Yes, I agree that if I had copied the design from someone else and just printed the part, it could be done cheaper. But I have designed these kits all the way from idea to sale.
I give support to my customers, which all takes time, and MINI and BMW recommend a replacement of the unit, which has a whole other price tag.

Rated 5 out of 5 stars

2016 BMW X1 Blend door shaft repair

I emailed Peter prior to ordering the parts to repair my 2016 BMW X1 that was blowing hot air on the driver side and cold air on the passenger side. He was very helpful and recommended both a broken shaft repair kit and a stop repair part to use as a preventative measure. Peter also provided videos showing the repair procedures. The parts were delivered very quickly to the United States. I installed the repair parts and the air conditioning is working great again!

26 June 2026
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Reply from Heater Fix

Great you fixed your heating - thank you for the five stars
Peter

Rated 5 out of 5 stars

I thought my customer was going to cry…

I thought my customer was going to cry when I told her $4000 to replace the heater core case...not sure how i ran across this fix.. flawless...

24 July 2026
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Reply from Heater Fix

Hi Michael
Thanks for the five stars.
I'm glad you was able to help your customer.
Best Regards
Peter
Heater-fix

Rated 5 out of 5 stars

I bought the wrong part for my car and…

I bought the wrong part for my car and Mr. Moisen sent me the right part free of charge. What's a great service from HeaterFix. I am sure I will come back to HeaterFix in the future if I have a need for another part. Thanks.

13 July 2026
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Reply from Heater Fix

Hi Tim
Thank you for the five stars.
Best Regards,
Peter
Heater-fix

Rated 5 out of 5 stars

I emailed regarding what I needed and…

I emailed regarding what I needed and had quick responses trying to help me make sure it was the right item I needed. Ordered arrived on time and best of all worked and saved me a lot of money. Would reccomended 100%

11 July 2026
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Reply from Heater Fix

Hi Kyle
Thank you for the five stars, I'm glad that my kit fixed you issue.
Best Regards,
Peter
Heater-fix

Rated 5 out of 5 stars

LITERALLY SAVED THE CUSTOMER THOUSANDS

Firstly, the shipping was amazing! We can hardly get shipping from Ohio, USA to be this swift. Second, we greatly appreciate the effort put into this kit as it saved both the customer and us a tremendous amount of money and time. We will certainly be using these supplies on these jobs in the future. Thank you!

10 July 2026
Rated 4 out of 5 stars

Product worked well to fix my mini…

Product worked well to fix my mini cooper’s ac issues. Website directions were pretty good, but a video explaining some steps would be useful. It was a little scary cutting into my car without completely understanding the process, but everything went pretty smoothly. I received an email response to my questions within 24 hrs.
The included hole saw bit also had a few bent teeth, which made it not fit well into the drill guide. Another review mentioned that the shipping and duty were as much as the cost of the product, but it was worth it to receive the part in less than a week (shipped to US).
Tip: Save the piece removed by the hole saw. It makes it easier to adjust your actuator position if needed to reinstall, just use pliers to turn the piece after sticking it into your actuator.

26 June 2026
Rated 5 out of 5 stars

It worked!

I drive a 2015 Mini Cooper S 4-door. My passenger side has been blowing hot air for a couple years now and I have been putting off fixing it because the dealership quoted approximately $5000 to replace the HVAC system since the shaft attached to the blend door was broken. I came across this product (Broken Shaft-repair parts and drill guide) on some car forums and took a chance. I have little to no car experience and was able to perform all the directions and now I have cold/hot air! THANK YOU HEATER FIX! The entire process took me a couple hours, but again I'm a novice. I think what took the longest time for me was drilling using the hole saw (bought on amazon) since I didn't have a L shaped drill and getting the actuator to attach to the shaft at the right angle, both which are not really anything to do with this product. Shipping was fast (2-3 days), I am in the US so had to pay a duty fee on import~$20 through DHL. Overall, I would highly recommend this product.

12 June 2026
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Reply from Heater Fix

Hi Elaine,
Thank you for the fine review. I'm glad that my kit helped you fix your car. I'm sorry you had to live with a malfunctioning HVAC for so long. Thank you for the five stars!
Peter
Heater-fix

Rated 5 out of 5 stars

The delivery of the kit was very fast

The delivery of the kit was very fast. Repairing the cracked flap axis using the kit was easy and everything fit as it should. In two hours (first experience for me) it was done and now the flap switches as it should, air conditioning / heating...great :-)

4 June 2026
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Reply from Heater Fix

Hi Michael
Great you got your car fixed.
Thank you for the five stars
Best Regards
Peter

Rated 5 out of 5 stars

Heater-fix works!

First of all, I want to say that Peter was very helpful in explaining to me what he thought would work for my heater door problems! After his answers and reading every one’s posts on the subject matter I determined that all I needed was the $80 part and the best way to go about it. My actuator turned out to be ok and both sides are blowing cold and hot. A heck of a lot cheaper than Mini’s $2000 + repair bill! Thanks again Peter!

30 May 2026
Unprompted review
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Reply from Heater Fix

Thank you for the five stars Rendall - You are welcome

Rated 5 out of 5 stars

Very good kit

Very good kit. Works great and peter the guy who made is very helpful and responsive. Absolutely buy this kit.

5 April 2026
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Reply from Heater Fix

Thank for the five stars, Carl

Rated 4 out of 5 stars

Product worked great

Product worked great. I did have to modify the spacer block to mate to the actuator motor. I also needed to use longer screws. But my A/C works again.

22 March 2026
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Reply from Heater Fix

Hi Jeffrey
I'm sorry you had issues installing the broken shaft kit, it sounds like the insert is not fully installed. There are a small area that if the drill guide move during drilling is not removed. This can easy be removed after and then should the insert go fully in without the need for longer screws.
I will send you a picture on you mail so you can see where to look.
Best Regards,
Peter

Rated 5 out of 5 stars

No brainer to try.

I'm in the US. I had been quoted about $3k for labor to replace the heater box in my Mini Cooper (the official fix from Mini). While researching the issue, I came across this fix on a Mini cooper forum and figured it was worth a try. I'm glad there was an option for a broken shaft because that is what had happened to me. Got the kit in a few days and installed it this afternoon. Problem solved!

8 March 2026
Unprompted review
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Reply from Heater Fix

Hi Robert
Thank you for the five stars.
Great you got your MINI fixed.
Peter

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