Tag: bmw diagnostics

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BMW i3 Charge Module Replacement: Proper Repair Procedures

Working on modern electric vehicles, like the BMW i3, requires more than just technical skill, it requires specialized knowledge and continuous education. At our service centre,  (Techmax Auto) we pride ourselves on staying ahead of the curve by regularly attending training sessions and certification courses focused on the vehicles we work on every day. This dedication ensures that we provide our customers with the highest quality service, using the most up-to-date techniques and tools available.

BMW i3 REX

A great example of this is the replacement of the KLE (charge module) in a 2015 BMW i3 REX. The process requires careful handling of the high-voltage system, which operates at 380 volts. Disconnecting this system properly is crucial to avoid any potential damage. There’s a special procedure to follow when disconnecting the high-voltage system, as simply pulling the safety disconnect connector may cause significant damage to the high-voltage relay (master switch). This is due to the risk of arcing, which can damage the switch’s contactors.

What makes this process even more critical is that the system only allows for a limited number of disconnects before the high-voltage switch can fail completely. Once the switch is damaged, it may no longer work, leaving the system inoperable. That’s why we make it a priority to stay up-to-date on the best practices in the industry. We attend specialized courses that teach the proper procedures, and we ensure that our technicians receive factory training materials for the best possible results.

BMW Diagnostics

In addition to our technical knowledge, we also invest in the best diagnostic tools available. We use factory-specific hardware and software to ensure that we can update and re-flash all onboard computer systems. By connecting directly to the manufacturer’s server, we ensure that all software is the latest version, giving our customers the most reliable and efficient performance from their BMW i3.

BMW i3 Charge Module Replacement Photos

If you have any questions or need assistance with your BMW, don’t hesitate to reach out. We’re here to help with any of your European vehicle service needs.

Phone:
(1) 905.795.0419.

Related Article: BMW Hybrid Repair

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BMW Mercedes Diagnostics Test

Our clients ask us often: Do we charge for diagnostics?

Issues with BMW that no Diagnostics Test Would Find Out

In short yes we do, but let me explain.  There are  3 perfect examples of modern BMW,  Mercedes  issues which no scanner would ever find out, no matter where it was made or designed .

Case number one is a well maintained BMW X3 with  random misfire, at idle only and only intermittently. At first we checked all the usual culprits like fuel and spark management. Just to be sure we checked again.  We found everything in working order. The only thing left out is air management.

N52 BMW engine is Operated by Valvetronic System

The air gets in when the valve opens. There has been no misfire at cold start only. But as the engine started to slow down after cold start, the misfire would return.

This N52 BMW engine is operated by valvetronic system. It starts with a maximum lift of 8.5 mm of all the valves to aid in starting,  then will reduce the valve lift to a single valve only to 0.3 mm .

Knowing how the system works is job#1.  After shutting down the engine it goes into maximum lift,  therfore when we disconnected the hall sensor for the valvetronic, she reverts back to regular engine operation by using the throttle body.

There was a smooth idle in that case which confirmed there is an air management issue at hand. Before going to check the eccentric shaft or rocker we removed the intake manifold to inspect the inlet port. Than we found a broken flap embedded in the intake port, blocking the air path into #6 cylinder hence the misfire issue at idle only.

 A Seized Turbo Charger

The second case was a seized turbo charger pin to the wastegate where the owner got quoted 3 thousand to replace.  It took a little effort and some time to unseize the pin.  We lubed it, tested it. Passed the test and 3 thousand dollars is saved by checking the wastegate operation.

Case #3; The Lamborghini  Aventador at above, wouldn’t start.  Started with a low voltage issue which prompted a battery replacement.  After all it was caused by the hydraulic pump which issue is promptly fixed and car is back on the road. Check our Facebook out for more Lamborghini’s photos.

This 3 examples I brought up, just to show you;  We don’t charge for diagnostics, we charge for knowledge.

Visit our Facebook for more photos.

BMW diagnostics

Any questions, how may we help? Call us for more details: 905.795.0419

Related: Autologic Diagnostic for European Import Cars

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