Contact
If you have any questions about Haldex control unit repairs or need a hand, just reach out. We'd be happy to share our expertise and give you a hand.
Address:
Biskupice 246/4
32-020 Wieliczka
Poland
Opening Hours:
Mon-Fri: 8:30 AM – 4:30 PM
Sat: 10:00 AM – 1:00 PM
Phone:
+48 780 605 830
E-mail:
info@haldexserwis.eu
Our Customers' Reviews
Damian Skałka
9:53 AM, April 16, 2026
I highly recommend him. I’ve been to several repair shops where they suggested replacing the entire rear axle, rebuilding it, or performing other repairs. This guy, however, solved the problem in just a few minutes using a computer, and the cost of the service was a fraction of what the others quoted. You can tell he knows what he’s doing. Thank you for your help.
BarT M
11:34 28 Mar 26
Professionalism in every aspect… and super-fast repairs… My 5th gen Haldex control unit is back from the dead and running like a dream! Plus, the unit got professional moisture protection…
swiety1964 dar
12:35 27 Mar 26
I'm super happy I found this company. My Haldex controller bit the dust, and a new one was just ridiculously expensive. Thanks to these guys, I got my car fixed for a reasonable price. I totally recommend them to everyone!
Radek Wojtowicz
07:41 13 Mar 26
Both the phone contact and the service itself were incredibly professional. The cost was way lower than buying a new, or even used, Haldex IV control unit. I can wholeheartedly recommend this company to anyone struggling with a non-functional 4x4 drive.
Paweł W
17:50 18 Feb 26
I'd heard a lot about this place before, and it was all good stuff. Every single person who recommended them was right – 5 stars just isn't enough! The help was quick and to the point, with advice over the phone even before I sent in my controller. They were available by phone long after closing hours too. The repair was fast, spot-on, and super affordable. I was worried no one would be able to help with my Haldex, but luckily I found this workshop. They helped me understand exactly what happened with my controller and what the implications were. Huge thanks! I honestly recommend them.
Marcin Perz
17:40 16 Feb 26
Super professional approach to customers, incredibly fast repair – 3 days including courier shipping, and the controller was back in and installed. The car's running great, everything's working! HIGHLY RECOMMEND!!!!
Małgorzata Leks
16:18 22 Jan 26
This is my first time leaving a review, but I just have to spread the word about these awesome pros! I had an issue with my Haldex; it just wasn't working. I visited a bunch of specialists in my area and made tons of calls, and everyone kept saying the differential needed reconditioning, and probably the pump too. Finally, I stumbled upon this service, and after a phone call, I heard something completely different – it was hard to believe! This guy was the only one with a different take, but I decided to give it a shot. I booked an appointment, went there, and the technician fired up his laptop, did some adaptation and calibration, and boom, everything worked! All for a symbolic amount, not thousands. Seriously, I recommend this to anyone with a problem; give them a try, because this guy really knows his stuff!
Michał Kowalski
15:09 20 Jan 26
Hey there. I called this guy today about my non-functioning Haldex rear-wheel drive in my Passat B8, and he was super helpful and solved my problem. This pro really knows his stuff, he knows what he's talking about, and on top of that, he's friendly and polite. Wish there were more specialists like him! I wholeheartedly recommend him.
Łukasz Gottfried
21:05 09 Jan 26
So, two days before a roughly 1500 km trip north, my Haldex unit decided to kick the bucket – just my luck! The part was only available at the dealership in about a month, costing 4000 PLN. I scoured the internet, but couldn't find anything available immediately, and even used parts were ridiculously expensive. Then I stumbled upon this service online. After a quick chat and diagnosing the issue, I dropped off the part since I was nearby. The repair was LIGHTNING FAST! The part was ready the very next morning. This guy's a PRO! He even helped me out again later that same day. Rating: 100/10. And the price? Totally fair for such solid and speedy work.
Karol Nowicki
13:53 25 Dec 25
I rarely leave reviews, but for this workshop, my conscience practically demands I give 5 stars – and even that feels like not enough. Honestly, I didn't think such experts still existed!
I'm from Warsaw, and the problem was with my Passat Alltrack B8. One of the 'Warsaw specialists' quoted me 2300 PLN for a supposed Haldex adjustment, which – as it turned out later – is complete nonsense. You either replace the friction elements with new ones, or you just clean them and fill with new oil (which wasn't even included in his price!). When I asked if the 4x4 drive would work after this service, I got the answer: 'I guarantee my work, but whether the drive will work – I don't know, because there's also the pump and the control unit.' Luckily, I didn't go for that service.
At another workshop, they replaced the pump with a new one, but the 4x4 drive still wasn't working. That's when I heard I'd also need to replace the control unit…
Thankfully, I stumbled upon haldexserwis.eu. I described the problem, and a super friendly, competent guy diagnosed everything over the phone. He honestly told me that, in his opinion, both the drive and the control unit were fine, and the issue was just with adaptation.
And guess what? Every single word he said turned out to be true!
The 4x4 drive came back to life, the operation was a success, the old pump stayed, calibration was done, and everything works perfectly.
Huge respect to the owner for his expertise, honesty, and immense knowledge. I wish I only met people like him in my life!
Greetings again and a heartfelt thank you.
I'm from Warsaw, and the problem was with my Passat Alltrack B8. One of the 'Warsaw specialists' quoted me 2300 PLN for a supposed Haldex adjustment, which – as it turned out later – is complete nonsense. You either replace the friction elements with new ones, or you just clean them and fill with new oil (which wasn't even included in his price!). When I asked if the 4x4 drive would work after this service, I got the answer: 'I guarantee my work, but whether the drive will work – I don't know, because there's also the pump and the control unit.' Luckily, I didn't go for that service.
At another workshop, they replaced the pump with a new one, but the 4x4 drive still wasn't working. That's when I heard I'd also need to replace the control unit…
Thankfully, I stumbled upon haldexserwis.eu. I described the problem, and a super friendly, competent guy diagnosed everything over the phone. He honestly told me that, in his opinion, both the drive and the control unit were fine, and the issue was just with adaptation.
And guess what? Every single word he said turned out to be true!
The 4x4 drive came back to life, the operation was a success, the old pump stayed, calibration was done, and everything works perfectly.
Huge respect to the owner for his expertise, honesty, and immense knowledge. I wish I only met people like him in my life!
Greetings again and a heartfelt thank you.
Grzegorz Więzik
19:57 08 Dec 25
100% recommend!!!! The controller regeneration was super fast!!!! Everything works perfectly. Professional advice and support for our workshop during problem diagnostics. Smooth, repeated contact!!!!
Andrzej
11:47 06 Dec 25
I'd like to sincerely thank you for the phone support I received. The consultation was incredibly professional, precise, and super helpful. The person I spoke with showed great knowledge, kindness, and patience, quickly clearing up all my doubts.
Bartosz
18:41 05 Dec 25
I called you about an issue with my 4th gen Haldex. After a brief chat, we arranged a longer call for when I'd be with my car and VCDS. Based on the parameters I provided, you diagnosed a valve fault. You gave me precise instructions on what to do, and I followed them. After an ultrasonic cleaner flush, the valve came back to life, the drive works, and the car is flying! 😁
I wholeheartedly recommend this guy; he's a true specialist, knows his stuff, and has clearly worked on countless Haldex units.
I wholeheartedly recommend this guy; he's a true specialist, knows his stuff, and has clearly worked on countless Haldex units.
Patryk
09:13 03 Dec 25
Quick service and excellent customer communication. HIGHLY RECOMMEND!!
Tomasz P
21:25 29 Sep 25
I'm really impressed by the service quality and the excellent customer-focused approach, which systematically addresses problems starting with the simplest and most affordable options until the fault is resolved. I wholeheartedly recommend them!
Marcin Karmazyn
10:54 28 Aug 25
Great people, fantastic approach. I wholeheartedly recommend them.
slawek jankowski
11:10 27 Aug 25
Łukasz Sieńkowski
20:49 08 Aug 25
Seriously, I can't recommend them enough! The service is absolutely top-notch. My Haldex issue was sorted out super fast, and the communication was excellent. It's clear the guy really knows his stuff when it comes to Haldex operation and service. Plus, he gave me some really valuable tips on how to properly maintain the system to avoid future problems. Again, highly, highly recommend!!!
Grzegorz Sz
01:44 19 Jul 25
This guy is a gem! He did what others said was impossible. He really knows his stuff. If you're looking for a real pro for Haldex controller repair, he's your guy. He'll explain everything, tell you the best approach, and get it done. He guarantees his work. There are two ways to get it fixed: either bring your car to him, or you can send him the controller, and he'll repair it and send it back 100% done!!! He seriously knows his stuff. Thanks to him, my car is running perfectly. So, if anyone has a problem with their Haldex drive controller, it's no problem for this expert. And one more thing: don't listen to others who say it can't be done, because I know it CAN be done!!!! My controller was burnt and flooded, but he fixed it, and my Tiguan is flying now, which is the most important thing. And as for the cost, it's super cheap for such a job 💪👍. Once again, a huge thank you. I'll be recommending your Haldex service to everyone.
Piotr Chmielewski
09:28 18 Jul 25
You could tell the guy I spoke with really knew his stuff; he gave expert advice and helped solve my Haldex problem, all while being super polite.
Paweł „JakoTako” Nowak
05:33 15 Jul 25
They have extensive knowledge of Haldex and its common faults. After just a few words on the phone, you know you're dealing with an expert in the field. The controller was repaired super fast, the Haldex came back to life, and hopefully, it stays that way. I wholeheartedly RECOMMEND them!
Edyta
16:03 06 Jul 25
I recommend this company. Professional service and great communication. I personally delivered my Haldex controller for a VW Tiguan, along with the valve and pump. They did a quick check, diagnosis, and repair. Now my 4x4 drive works like new! Highly recommend.
Michał Kucharski
05:52 30 Apr 25
Good communication, quick repair, and fast shipping of the controller. I recommend them. Best regards, the controller is installed, and everything is running perfectly.
Owner's response 06:40 30 Apr 25
Thanks a lot for your feedback! We always prioritize quick communication, effective solutions, and complete customer satisfaction. Cheers and hope to see you again!
Patryk Gołyszny
13:08 28 Apr 25
Great communication and total professionalism. In my case, the Haldex 4 in my Audi S3 8P wasn't working – the issue was solved remotely over the phone with quick diagnostics and fault removal. HIGHLY RECOMMEND!
Owner's response 16:20 28 Apr 25
Thanks for the feedback! Our priority is to quickly and effectively solve our customers' problems, always focusing on their needs. We're glad we could help you out remotely with your Audi S3 8P. Come back anytime!
Paweł Jopek
11:47 19 Mar 25
Awesome communication and complete professionalism. For my Haldex 5 in an Audi A3 8V, which wasn't working – the problem was quickly diagnosed and fixed remotely over the phone, super fast. This company is definitely worth recommending, they really know their stuff. STRONGLY RECOMMEND !!!!!!!!!!!!!!!
Owner's response 15:35 19 Mar 25
Thanks for the feedback! We're always happy to share our knowledge to help you quickly and effectively solve any issues. Glad we could help! If you ever need us, we're here for you. Cheers!
Hans Hans
20:48 14 Mar 25
I totally recommend Haldex service. We sent in two control units for repair, and they were diagnosed and fixed quickly and flawlessly. Communication was excellent. Full trust and complete professionalism. Straightforward, no unnecessary upsells. If you're having Haldex issues, you've found your solution. HIGHLY RECOMMEND!!!
Owner's response 06:08 19 Mar 25
Thanks for trusting us and for such a positive review! We're all about quick and professional repairs, so we're thrilled we met your expectations. If you ever need anything, we're always here to help! Best regards.
Kacper Wołoszyk
20:35 13 Mar 25
They even help over the phone, which is super rare these days. After sending in the control unit, diagnostics and repair were lightning fast. Everything was absolutely spot on! I'm really happy with the service! Thanks for the help, and of course, I HIGHLY RECOMMEND them! 🙂
Owner's response 09:02 14 Mar 25
Thanks for such a positive review! We're always happy to help and share our knowledge – glad you were satisfied with our service. If you ever need anything, we're here for you. Best regards!