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Fiat FTP C635 Dual Clutch DDCT Gearbox Faults & Repairs

Steven Kay |

This post relates to the Fiat C635 DCT semi-automatic dry clutch gearbox that suffers various issues. This gearbox is found on Alfa Romeo, Fiat, Dodge & Jeep models including the, 4C, Mito, Giulietta, Dart, 500L, 500X, Tipo, Viaggio and Jeep Renegade.

Fiat FPT Dry Dual Clutch Gearbox

The Fiat DDCT C635 gearbox is one of a growing number of dual clutch transmissions being installed on modern vehicles today. With this setup being the preferred choice of manufacturers because of the improvement in fuel economy, it is believed that dual clutch gearboxes will be in 70% of all vehicles in the next 10 years.

Common DDCT C635 Faults

The main reason we see the Fiat DDCT C635 gearbox here at Eco Torque is clutch failure. While 95% of the time this is not an actual issue as such, but just general wear and tear at an acceptable mileage, there are some occasions that we see them on low mileage. As with all dual clutch replacements, these components require a specialist tool to install and shim them correctly. If this is not done the clutch pack, at best, will have a considerably reduced lifespan, however more often than not the vehicle will not operate correctly straight away.

This also has a strong chance of damaging other components if not installed correctly.

Fiat FPT DDCT C635 Dual Clutch Gearbox

The one major issue we are seeing with this transmission is over-shimming from the factory. Not on the clutch pack but the main gear shaft inside the gearbox. We have seen a Jeep Renegade in with only 13,000 miles on the gearbox and the over-shimming damage is pictured below.

Fiat Dual Clutch Gearbox Bearing Failure

As you can see, the over-shimmed gear shaft has been so tight that the taper roller bearing has completely collapsed. This produced a distinctive whining sound whilst the vehicle is in motion. A full re-shim of the gearbox and replacement bearings are required to rectify the fault.

If you think your vehicle might be suffering from this fault and as with all gearbox issues, it is best to get it looked at straight away as it could save the customer substantial amounts on their repair bill.

Eco Torque offer an initial electronic diagnostic service with our main dealer equivalent machine. This shows us live data from the gearbox as well as a report for the customer to see the fault codes within the dual clutch unit. This essential first step is £90 including VAT and takes around 1 hour to complete.

All of our dual clutch gearbox repairs or recons come with a 24 Month 24,000 Mile Warranty. We also offer 0% finance through Omni Capital Finance to spread the cost of the repair bill. Eco Torque can also provide courtesy cars* as well as recovery* of your vehicle.

Contact Eco Torque Today:

Tel: 01462 835335

Email: info@eco-torque.co.uk

Eco Torque Ltd,  Unit 1A Portland Industrial Estate,  Hitchin Road,  Arlesey SG15 6SG

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