Having to go legal for the return of all my funds from Halliwell Jones BMW. Beware of the known Drivetrain failure by BMW on the new M5. They have had my brand new car for 8 weeks without fixing the known DME Drivetrain failure. Having now to take them to court for the return of all my funds. Below is the commonly known historic problem, yet they continue to state they know nothing of this. BMW are the worst car manufacturer in the industry! 1. The "Dreaded" Drivetrain Failure & Software Glitches The most common electronics-related issue logged by owners of the new M5 is a sudden "Drivetrain Malfunction" warning on the iDrive screen, often accompanied by limp mode or the car locking itself into a single gear (such as 3rd gear). [1, 2, 3] • The Cause: BMW tracking and technical service bulletins indicate this is heavily tied to an implementation and communication error within the OBD diagnostics and transmission management software. The DME registers data mismatches between the V8 engine and the hybrid electric motors. [1, 2, 3] • The Fix: BMW rolled out an official integration software update (I-Level patch 03/2026.39 or newer) specifically designed to rewrite the transmission code and stop the DME from throwing false-positive drivetrain faults 2. OBD Diagnostic Implementation Flaws (SIB 65 14 26) BMW issued official Service Information Bulletins (including SIB 65 14 26) affecting the new M5. [1] • The Fault: Control units (including the DME) suffer from an internal software tracking glitch where stored Diagnostic Trouble Codes (DTCs) and the Malfunction Indicator Light (MIL/Check Engine Light) refuse to clear automatically. Even after a physical issue is fixed, the DME permanently holds onto the warning light until a dealer performs a hard system flash. [1] 3. Tuning & DME Locking Constraints If you are looking at the DME from a tuning or aftermarket perspective, the electronic architecture is highly restrictive. [1, 2] • The Fault: The new M5 utilizes highly secure MG1CS201 Bosch DMEs. They feature strict bench-lock software protections that cause immediate communication connection timeouts or terminal diagnostic bricking if traditional OBD flashing tools attempt to override them. Specialist tuners have to use inline resistors just to wake up the bootloader interface without triggering a permanent DME lockout fault code
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We came for a recall. They broke our car and put us off work for a week! No apologies , or recompensate.
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Visited BMW Haliwell jones Wilmslow for the first tike today and i am disgusted on how i was judged when i walked into the place! My car was due a recall so i took it there and i wish i took it to trafford instead. I walked in and the way they all looked at me uo and down like i didn't meet the standards to walk into their BMW showroom! I didn't no you had to look or dress a certain way to visit bmw Haliwell Jones Wilmslow! Made me feel awful and embarrassed!! They told me i entered the wrong way for services on my car was through the back . I can honestly say the service people who do the work on the cars ( RECALLS,MOT,SERVICES ect) are absolutely lovely plus the customer service people at the front desk that greet you at the service bmw place . Made my 2 year old boy so happy they give him a gift toy car so thankyou you made his day . I dont need to exsplain my self to anyome the way u looked but i feel i should do in this occasion the reson i looked the way i did bmw Haliwell is becouse i have bad depression and anxiety and i tried to look my best today and make effort and bring my car my self instaed of my partner to get me out the house make me feel a bit human! But thankyou for making me feeling very low and no worth !
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Rubbish service, rude and rushed never known a place like it rude when u have a complaint NEVER GO HERE
DISHONEST - Avoid at all costs if you want a good service and don't want to be lied to.. Considering my being a good customer of Halliwell Jones BMW over the past 10 years, I recently bought a car from them and had the worst experience ever from a number of their employees. In my recent experience the service level is very poor, they have been 'slapdash' and dishonest. Basically everything you would not want to see in what is meant to be a reputable dealership. Never again.
Spent from lunchtime today trying to book a service,twice reception said they would get someone to call but they never did.I am afraid that I do not beg companies to give them business I will go elsewhere!
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Halliwell Jones Wilmslow BMW is an Franchise dealership that is based in Wilmslow. If you’re the owner or employee of this business, please send us a little bit of information about your dealership and why customers should come and visit.
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Manufacturers: Sells a variety of makes and models
Franchise Dealership
Halliwell Jones Wilmslow BMW
130 Manchester Road
Wilmslow
SK9 2LE
| Mon | 08:30 - 18:30 |
| Tue | 08:30 - 18:30 |
| Wed | 08:30 - 18:30 |
| Thu | 08:30 - 18:30 |
| Fri | 08:30 - 18:30 |
| Sat | 09:00 - 17:00 |
| Sun | 10:00 - 16:00 |
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