VWTechnik

25/09/2026

🔧 Nissan Qashqai J11 – HR13DDT Engine | Intermittent Judder & Misfire

Another challenging non VW group diagnostic job that required a bit of in-depth investigation the client had asked for a 3RD opinion buy us after months of the car not working correctly 😫

This Nissan Qashqai J11, fitted with the HR13DDT engine, had been suffering from an intermittent judder when running under load, particularly in a high gear at low RPM.

The vehicle had already been to a local garage and subsequently to a main Nissan dealer, with the problem continuing for several months.

We carried out our own diagnostic investigation, starting with live data monitoring during a road test. By carefully reproducing the fault, we were able to bring on three fault codes and capture the relevant data while the intermittent misfire was occurring.

We then analysed:
🔹 Camshaft adjustment angle data
🔹 Fuel trim figures
🔹 Misfire-related data
🔹 Engine parameters under load

The data pointed us towards the camshaft timing/adjustment system, so we carried out a further inspection of the timing chain and chain adjuster.

This led to the decision to replace the timing chain assembly as basically the stretch was one link or a tooth out..

✅ Following the repair, the vehicle was road tested thoroughly and the intermittent judder/misfire fault was completely resolved.

Another example of why proper live-data analysis and controlled fault reproduction can be so important when dealing with intermittent faults.

🔧 Diagnosis first — Parts second
Yes we had it in for 2 weeks but one week alone was the wait for the special tool to lock the camshafts and crankshaft. We are just very happy for the client who were sadly loosing confidence in the car and we were able to restore 🏁

14/09/2026

First job completed. These pedestrian protection SRS bonnet hinge igniters are on back order at all the local dealers at present so happily fitted the clients used parts sourced online and advised getting an order of new ones as these are commonly troublesome as get damp or flooded in the scuttle panel area.

06/09/2026

01/09/2026

A lovely afternoon with this beautiful lady 🏁

31/08/2026

Monday Marine Maintenance - unfortunately the client broke down on Friday evening achored off Estepona with a non start. After getting a tow back from Estepona Salvamento marítimo at 1am!

Monday morning first job was to test both batteries which were found unserviceable then carry out an alternator / charging test this was found to be only charging at 12.6V not 14v for good measure we added a decent Ferve battery optimiser keeping the new batteries maintained automatically on portside when the boat isn't in use, and we're sourcing a new Alternator asap 🏁

28/08/2026

Another busy week at the itv finished with 5 prepped and all passed with no advisories. Thank you to all our valued clients and have a good weekend. 🏁

24/08/2026

Monday morning call out on this 1999 Ibiza 1.0 crank no start. Now diagnosed to high resistance on the fuel pump circuit the fuse hadn't blown but loosened off over time and then started to melt due to the fusebox not being clipped back in previously. Now starts and drives an in line fuse holder to be installed🏁

18/08/2026

Call out to non start Audi Q5 2.0 TDI. Asking the client some questions and listening diagnosed this one without even opening the bonnet. 200k on the original injector seals and the first two had loosened off and then lost compression on pots 1 and 2. We opted to remove all 4 injectors 3 and 4 with a fight! And prep head then fit fully reconditioned units, code them in adjust any minimum quantities and we are good to go. 🏁

15/08/2026

Call-out to this 6C Polo 3-cylinder, which had arrived in limp mode.

Our checks found a split charge pipe along with a failed oil control solenoid. The client was hoping to make the journey to the airport tomorrow, but we gave firm advice not to drive the vehicle in its current condition.

A vehicle running in limp/derate mode can be a serious risk to the driver and other road users, and with an oil control fault also present, there is the added concern of potential oil pressure issues and further engine damage.

The safest option is to repair the vehicle next week before it goes back on the road.

13/08/2026

VW 1.6 CAYD EA189, 2011- TDI engine having a new oil pump wet belt and pickup pipe after customers complaint of intermittent then regular oil pressure warning on the dash. No oil pressure test required just straight off with the sump taking swift action and saving it from catastrophic damage mechanically and financially! 🏁