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Mercedes 220 Cdi Gearbox Repair

The automatic transmission specialists at Stephens Engineering recently carried out a Mercedes 220 Cdi gearbox repair. The Mercedes 220 Cdi was brought into our specialist workshop with the complaint of a rattle from the Mercedes transmission unit when under hard acceleration. The 2013 Mercedes 220 Cdi has a seven speed automatic gearbox.

The Mercedes 220 Cdi was thoroughly checked for anything that might have worked loose or be vibrating within the engine as the Mercedes engine had been repaired previously.

Only when we were sure that the rattle from the Mercedes transmission unit was internal, was the Mercedes 220 Cdi automatic transmission removed.  We removed the Mercedes gearbox sump and after inspection and examination of the gearbox sump, there did not appear to be anything wrong inside the Mercedes gearbox sump.

Next, the Mercedes torque converter was cut open and inspected, the Mercedes torque converters have balance weights fitted internally because of the stop-start technology. Examination of the torque converter revealed that the internal balance weights had worn and the wear to the torque converters’ balance weights resulted in excessive movement within the torque converter. To rectify the Mercedes’ gearbox rattle,  we fitted one of our rebuilt units to the gearbox and then refitted the Mercedes automatic gearbox.

It is crucial for ‘stop-start’ vehicles, such as the Mercedes 220 Cdi, that the correct fluid is used.  The Mercedes was subjected to a long road test which confirmed our fault diagnosis was correct and the Mercedes 220 Cdi gearbox repair had been successful and the vehicle was running now normally without the rattle on hard acceleration.

If your Mercedes 220 Cdi has a rattle during hard acceleration, book your vehicle into the Stephens Engineering workshop and let the automatic transmission experts repair your Mercedes automatic transmission.

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mini cooper gearbox repair

Mini Cooper Gearbox Repair

A Mini Cooper gearbox repair was recently carried out by Ware automatic gearbox repair specialists at Stephens Engineering.

The 2003 Mini Cooper was brought into the workshop with a complaint that the Mini Cooper had a very noisy transmission and also, there was a delay in engaging the forward gears. The 2003 Mini Cooper has a C.V.T. which is a constantly variable transmission.

In our experience, the Mini Cooper CVT transmission works extremely hard and the bearings and drum are often found to wear considerably as a result of the drive belt tension. With the Mini Cooper CVT transmission unit, as it wears over time, the Mini gearbox requires careful inspection of all moving parts with the CVT transmission unit.  When we remove and dismantle the Mini Cooper automatic transmission, we often find that it is necessary to replace most of the  moving parts due to the work of this little unit.

Common problems with the Mini Cooper CVT transmission are wear and failure of the drums, the drive chain and all bearings within the Mini Cooper gearbox, as was the case with this 2003 Mini Cooper gearbox repair.

The Mini Cooper gearbox was refitted, after re-assembly and replacement of the worn drums, drive chain and bearings.

To ensure smooth running of the repaired Mini Cooper gearbox, it is crucial to set the vehicle adaptations to its control unit and finally a long road test allows the vehicle to finish its relearning procedure and confirmed that the Mini Cooper gearbox repair had been completed successfully and the vehicle was running smoothly again.

Does your Mini Cooper have a noisy transmission? Are you experiencing a delay in your Mini Cooper engaging forward gears? Book your Mini Cooper into Stephens Engineering, the automatic transmission specialists in Ware and return to smooth motoring.

audi q5 gearbox repair

Audi Q5 Gearbox Repair

A 2010 Audi Q5 gearbox repair was carried out recently by the team at automatic transmission specialists, in the Stephens Engineering workshop.

The Audi Q5 was brought into the workshop with a complaint from the customer that the gearbox changes were rough and had a judder. A full diagnostic scan was carried and the code for the clutch temperature was present which indicate a problem with either the dual clutch unit or with the transmission control assembly. Further diagnostics tests were carried out in the workshop which pointed to an issue within the Audi Q5 transmission control assembly. The Q5 transmission control assembly was removed and modified parts fitted the assembly. In addition, fresh fluid was pumped into the unit and all codes and adaptions were reset.

The Audi Q5 was then taken on a long road test to check that there was no judder and that the  Q5 gear changes were smooth. The road test confirmed that the Audi Q5 gearbox repair had been successful, with no judder on changing gear and the gear changes were smooth.

Juddering, rough gear changes from your Audi Q5? Book your Q5 into Stephen Engineering; we have over 40 years experience in automatic transmission fault finding and repair.


Volvo XC90 Gearbox Repair

Automatic Transmission Repairs – A week in the workshop

Automatic transmission repairs in Ware

As you’d expect from the automatic transmission experts in the Stephens Engineering workshop, it’s been another busy week and for us, it’s all about automatic transmission repairs. We’re sharing a small snapshot of some of the vehicles and their problems that we’ve seen this week.

2012 Vauxhall Insignia was brought in needing automatic transmission repairs. This Vauxhall Insignia  has a front wheel drive six speed automatic transmission and in the Vauxhall Insignia, this unit does seem to have issues after approximately seventy thousand miles. Harsh gear changes were noted and this Vauxhall was brought in just in time for us to repair and return to smooth running.

2011 Vauxhall Astra which had covered  32,000 miles was brought in with gear change problems and no reverse gear.  After a thorough diagnostic scan, solenoid codes were noted and on inspection, we found that the transmission unit had overheated and damaged the internal components. We carried out automatic transmission repairs, removing and dismantling the Astra’s transmission and fitting a replacement torque converter. After re-fitting the Vauxhall Astra automatic transmission, the vehicle was running well.

2008 BMW X5 with a z.f. six speed automatic transmission was brought in with a slip in both 5th and 6th gear, the diagnostic scan picked codes highlighting a problem with the E-clutch assembly. When the BMW X5 gearbox was removed and dismantled and the E-clutch was pressure tested to check for pressure loss. We replaced the E-clutch unit and rebuilt the transmission using the original z.f. components and after some thorough automatic transmission repairs, the gearbox was back to original performance.

For automatic transmission repairs, bring your vehicle to the automatic transmission experts at Stephens Engineering.

Contact us to enquire how the Stephens Engineering automatic transmission specialists can improve your motoring experience and your vehicle’s performance.

gearbox repair

Mercedes B Class Gearbox Repair

Mercedes B Class Gearbox Repair by Stephens Engineering

The automatic transmission experts at Stephens Engineering have carried out a Mercedes B Class gearbox repair. The 2009 Mercedes B Class brought in to our Ware workshop, had an automatic transmission fault. One of the common reasons for automatic transmission problems with both Mercedes A Class and Mercedes B Class which have a CVT (continuous variable transmission), is usually caused by an electrical problem.

The control unit for this particular gearbox in the Mercedes B Class is located within the sump and as a result, it is subjected to extreme temperature changes. In addition, small particles of metal can also lead to the control unit being confused. To rectify the fault to the Mercedes B Class gearbox, we replaced the transmission control unit. The transmission control unit of the Mercedes B Class was programmed and reset. The Mercedes B Class gearbox repair was completed with a change of the transmission fluid and filter.

At Stephens Engineering we have many years of experience in dealing with automatic transmission fault finding and repairs, if your vehicle has an automatic transmission fault,  book your vehicle in with Stephens Engineering automatic transmission experts. Contact us today to book in your vehicle with the knowledgeable experts at Stephens Engineering.

VW Golf gearbox repair

Gearbox Repair – A week in the workshop

Gearboxes Repairs in Ware

The Stephens Engineering workshop has been extremely busy over the past month repairing automatic gearboxes and here’s just a snapshot of a week in the Stephens Engineering workshop where we carry out our gearbox repair to a range of different vehicles.

This week we have repaired the automatic transmission on many cars and one of the first was a 2009 Audi A5. The Audi A5 has an eight speed, front wheel drive automatic transmission was brought into us because of the gearbox warning light showing during motorway driving and harsh gear changes. After a diagnostic scan, the Audi A5 automatic transmission was removed and dismantled and after re-fitting the automatic transmission, the Audi A5 is now running well.

We’ve repaired a Bentley four wheel drive transmission with the six speed Z F unit.  The Bentley was brought into the workshop with a complaint of  a bad whine and vibration whilst the Bentley was under acceleration. Our customer was convinced the issue was with the Bentley’s gearbox, however, we were not convinced and after several checks, we decided to change all the Bentley’s gearbox and engine mountings before we condemned the Bentley’s automatic transmission. A road test confirmed our expert opinion was correct.

We’re repaired the automatic transmission of a 2009 Mercedes B Class.   One of the most common automatic transmission failures for both the Mercedes B Class and Mercedes A Class fitted with the C V T type transmission are electrical.  The control unit for this gearbox is in the sump, making it subject to extreme temperature change and small particles of metal can result in the control unit getting confused.  We rectified the fault by replacing the Mercedes B Class transmission control unit.This then needs to be programmed and reset.  Transmission fluid and filter are also changed.

The next gearbox repair to be carried out was a 2006 Nissan Note. The Nissan Note has a gearbox problem and was experiencing fourth gear slip. As the Nissan Note had covered more than 100,000 miles, most of the Nissan Note automatic transmission components were showing signs of extensive wear. To carry out a gearbox repair to this Nissan Note, we undertook a complete overhaul of the Nissan Note’s automatic transmission and after long road test and leak check, the vehicle was running well.

When you bring your vehicle to Stephens Engineering, you can be sure that your gearbox repair is being carried out by an experienced team of automatic transmission experts.

Contact us to book in your vehicle with the automatic transmission experts in Ware.


gearbox repair

Chrysler Voyager Gearbox Repair

Chrysler Voyager Gearbox Repair

We carried out a Chrysler Voyager gearbox repair in the Stephens Engineering workshop recently.

The 2008 Chrysler Voyager was delivered to our workshop with very little drive and binding up. Following a detailed inspection, we noted that the engine oil was burnt and so we removed and stripped the automatic transmission of the Chrysler Voyager. This 2008 Chrysler Voyagers is a diesel model and tend to be more prone to suffering from failure of the torque converter. We cut open the torque converter and found that it was in quite good condition but further into the automatic transmission, we found signs of water contamination. We ran further testing of the automatic gearbox cooling system which is part of the Chrysler’s air conditioning condenser and the leak was found.

We overhauled the automatic gearbox and the torque converter and then refitted them to the vehicle. We fitted a new condenser radiator and flushed the system to ensure there were no further leaks and or water contamination to the gearbox. All the  trouble codes were cleared and we gave the vehicle a ten mile road test which found the automatic transmission was working fine and the vehicle was driving well.

Does your diesel Chrysler Voyager have very little drive? Could your vehicle be suffering from potential torque converter failure?  With Stephens Engineering, you have peace of mind that your vehicle is being repaired by automatic transmission specialists.

Contact us today.

2013 Mercedes Sprinter Gearbox Repair

BMW 1 Series Gearbox Repair

BMW 1 Series Gearbox Repair

A 2009 BMW 1 series was brought into the workshop with the transmission warning light showing.  We ran a diagnostic check and the diagnostic print out recorded issues with the 4th and 5th gear ratio.

The automatic gearbox of the BMW was removed and stripped down and thoroughly examined.  All the components were noted to all be in satisfactory condition with the exception of the “E” clutch unit. The “E” clutch unit is applied in 4th and 5th gear and on this BMW 1 Series, had a suffered a crack to the drum which was causing a loss of hydraulic pressure. The loss of hydraulic pressure within the unit affected the performance of the vehicle.  The BMW 1 Series gearbox repair started by replacing the drum of the clutch, the bushes were checked and also the hydraulic pressure. All the parts of the automatic gearbox were checked and cleaned and the gearbox was re-assembled. The clutch unit and gearbox were refitted and all the codes had cleared. A long road test was carried out and all faults were gone and the vehicle was running well.

At Stephens Engineering, we can run diagnostic tests to find the fault when you’re transmission warning starts to show and carry out the repairs required. Avoid damage to your engine and let the specialists in automatic transmissions sort out your vehicle’s fault code.

Contact us today.

2003 CLK Mercedes gearbox repair

Nissan Juke Gearbox Repair

Nissan Juke Gearbox Repair

A 2011 Nissan Juke was brought with a fault, the vehicle was juddering and stalling. During the automatic transmission diagnostic fault finding, we found that no trouble codes had been stored,  so the Nissan Juke’s sump was removed for further inspection. Particles of metal were found to be present in the fluid in the sump, this indicate that the Nissan Juke automatic transmission needed to be removed.

The automatic gearbox was completely stripped and the torque converter was also cut open for repair.

As automatic transmission specialists, we have encountered a number of faults with this type of continuously variable transmission (CVT) previously. The faulty parts were replaced and a number of modifications were made. Once we had overhauled both the automatic transmission and the torque converter, we refitted them. Best the test run, the cooling system was thoroughly flushed through to remove all the metal particles in the lines.

The Nissan Juke gearbox repair was complete and after carrying out a long road test, we noted that the vehicle was running well without stalling and juddering.

Stephens Engineering have many years experience in rectifying and repairing automatic transmission faults. If you’re experiencing problems with your vehicle’s automatic transmission why put up with your vehicle juddering and stalling? Contact the automatic gearbox specialists at Stephens Engineering to bring back the pleasure in driving your vehicle.


Volvo XC90 Gearbox Repair

Automatic Transmission Repairs – A week in the Workshop

Automatic Transmission Repairs – A week in the Workshop

Each week brings us a different challenge and this week the automatic transmission specialists at Stephens Engineering have been busy repairing automatic gearboxes and fault finding. We have carried out a number of automatic transmission repairs this week and here is a snapshot of what we see in our workshop:

2011 Mercedes Sprinter van with a loss of drive, the transmission required a complete overhaul after we discovered water had leaked from radiator into the gearbox.

2005 Nissan X-Trail, this vehicle was referred to us from a local garage with a whine from the automatic gearbox or transfer case.  We weren’t convinced that automatic transmission repairs were needed and this fault was found to be a front wheel bear which we replaced, saving our customer the cost and inconvenience of a complete automatic transmission rebuild.

Mercedes 500 cl with a loud whine in the lower gears.  We stripped down and completely overhauled the gearbox, replacing the worn and damaged parts.

2011 Nissan Juke,  this vehicle was juddering and stalling.  We carried out a diagnostic text, after removing the sump discovered metal particles. Automatic transmission repairs were needed so the automatic transmission was removed and overhauled.

This week, we have carried automatic transmission repairs to a number of different models vehicles and also repaired faults that were unrelated to the automatic gearbox. When you bring your vehicle to Stephens Engineering, you’re bringing your vehicle to the automatic transmission specialists in Ware.

Contact us to book your vehicle in with Stephens Engineering.