Are you experiencing transmission issues in your DSG-fitted VW Tiguan, and you’ve got a stored fault code for P1735 or P1736? It sounds like you’re experiencing a known issue with the DQ381’s mechatronic unit which will need to be repaired. Don’t worry, this issue is common and you won’t need to replace the entire gearbox.
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I’m sure we don’t need to tell you about the DQ381’s recurring problems with its mechatronic unit and its frequent need for repair – click here to find out more.
These control modules are fitted with components that degrade faster than they should do, leading to an intermittent loss of gears and limp mode. But did you know that two codes in particular signal your mechatronic is on its way out? The presence of both P1735 and P1736 in your VW Tiguan are key indicators that a DQ381 mechatronic repair is required.
Common signs of DQ381 failure (VW Tiguan):
What causes the VW Tiguan P1735 & P1736 fault?
As you can see, both of these codes indicate that the mechatronic has detected a discrepancy in the clutch’s position. Of course, the DSG dual-clutch transmission (DCT) is comprised of two clutches, each responsible for one set of gears.
The mechatronic unit is highly sophisticated and processes a plethora of data fed to it by a range of sensors. It uses this information to be able to select the appropriate gear and engage the clutch at the perfect time, thus allowing for a smooth and efficient shifting experience. For this to be possible though, the mechatronic unit is constantly thinking and often preparing the next gear before it’s even required.
As you can imagine, this is a highly-tuned and sensitive process, and any discrepancy in sensor data leaves owners scrambling around for a DQ381 mechatronic repair due to a host of transmission issues. Unfortunately, the DQ381 is equipped with a particularly unreliable mechatronic unit. Due to constantly failing internal components, the once-streamlined internal circuitry of the mechatronic becomes compromised and error-prone.
This is exactly what is happening with your VW Tiguan’s P1735 and P1736 codes. The control module relies on clutch position data to understand exactly how far the clutch pack is engaged at any given moment. When the internal malfunction strikes and disrupts the system, the mechatronic loses confidence in its ability to know exactly how far each clutch is engaged.
As a result, owners lose the functionality of one set of gears until the DQ381 mechatronic has been repaired. If your VW Tiguan has a P1735 code stored, functionality of odd gears 1, 3, 5, and 7 will be lost. Likewise, if your VW Tiguan has a stored P1736 code, the even gears 2, 4, and 6 will be lost.
Our VW Tiguan P1735 & P1736 solution
Thankfully, this fault doesn’t mean you have to replace the entire gearbox. You might have found a range of DQ381 mechatronic repair services online, however we’ve got a better solution. We’ve developed a full remanufacturing solution for your faulty DSG mechatronic.


Our rebuild service is designed to not only restore functionality, but to ensure the fault never returns in the future. We do this by using the very latest remanufacturing techniques and equipment, as well as higher-than-OEM-standard components. We go a step further than regular DQ381 mechatronic repairs, we completely rework your control unit so that its long-term durability is significantly enhanced. We think this is important given the high-volume of miles typically demanded of the DQ381 gearbox by its owners.
Better still, we’ll even cover you with an unlimited-mile lifetime warranty too – unlike most other DQ381 mechatronic repairs. Our process takes just 2-3 working days and you won’t need to recode the rebuilt unit back to your vehicle either.
Resolve your VW Tiguan’s P1735 and P1736 codes the smart way, have your mechatronic unit rebuilt by the experts. Fill out our test form now to get started.
Common failure symptoms:
Common fault codes (VW Tiguan):
Removal and refitting:
Test and rebuild:
Our testing process is designed to pinpoint hard-to-find faults under realistic driving conditions. We do this by developing our custom-built testing rigs and continuing to invest in the very latest equipment.
Programming:
You won’t need to recode your rebuilt mechatronic unit at any further cost. All programming information previously stored in your control module when you sent it to us is preserved throughout our process. This means you can simply refit and go, when you receive it back from us.
Quality:
We've developed strict quality assurance practices which has helped us to achieved an industry-leading defect rate of just 0.49%.
Warranty:
Lifetime unlimited mileage*
How do I get my unit rebuilt?
To pay for the rebuild click the Shop Now link above, select your part number and click: Get yours rebuilt.
Print the payment/booking confirmation email.
Package the DQ381 mechatronic unit inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).
Send us your package by tracked courier (the shipping instructions are on the confirmation email).
Once received we will test, rebuild and return your control module with an unlimited mileage lifetime warranty. (if your unit turns out not to be faulty then we will refund your payment less a small testing fee and return shipping)
What if I don’t want to pay up front?
This is not a problem, if you prefer this option then follow the following steps:
Fill in and submit this test form.
Print the booking confirmation email.
Package the mechatronic inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).
Send us your package by tracked courier (the shipping instructions are on the confirmation email).
Once received, we will test your unit and call you to advise on the outcome of testing, if your control module is faulty and you choose to go ahead with the rebuild then we will take payment over the phone using a debit/credit card.
We will then rebuild your mechatronic and return it to you with an unlimited mileage warranty.
If you require further information regarding this DQ381 mechatronic fault then please contact us.