However much like the previous seven speed conductor plate, the 7G Tronic Plus still comes with its fair share of problems.

Commonly when the 7G Tronic Plus conductor plate fails it will cause gears to stick before instigating a harsh gear adjustment causing rough and jerky gear change. Failure of the 7G Tronic Plus conductor plate will also completely prevent selection of any gear, leaving the vehicle undriveable. When looking at diagnosing the vehicle for these issues be sure to scan and read fault codes from the transmission, if faulty the 7G Tronic Plus conductor plate will log fault codes for internal speed sensor issues.

All of these faults usually begin intermittently but will always worsen into a more permanent state if left unresolved. Rather than an expensive replacement from manufacturer, which will need SCN Software Calibration Numbering and CVN Calibration Verification Number coding at an extra expense, we offer test and rebuild of your original conductor plate within working days. By rebuilding your original you will not need any form of coding or programming when you receive it back.

During rebuild only the highest rated components are used by our highly skilled technicians. All coding is retained during test and rebuild — meaning that there is no need for expensive programming when you receive the unit back from us. Our lifetime warranty standards demand the strictest quality control encompassing testing, components and workmanship. With a work defect rate lower than 0. Send us your package by tracked courier the shipping instructions are on the confirmation email.

Once received we will test, rebuild and return your conductor plate with an unlimited mileage lifetime warranty. Fill in and submit this test form. If you require further information regarding this 7G Tronic Plus conductor plate, then please contact us. All workers within NHS, emergency services, care, education, food, utility, delivery services etc.

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mercedes 7g tronic problems

Mercedes seven speed 7G Tronic Plus problems causing no gear selection. Remove the 12 screws that hold the control module to the valve body Remove the 10 solenoids that connect through the control module to the valve body make note of their positions for correct re-installation Test and rebuild: Using our bespoke Hardware-In-the-Loop HIL test rigs each 7G Tronic Plus conductor plate is tested both before and after rebuild to ensure that no faults remain.

Programming: All coding is retained during test and rebuild — meaning that there is no need for expensive programming when you receive the unit back from us. Quality: Our lifetime warranty standards demand the strictest quality control encompassing testing, components and workmanship.

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. ECU Transmission. Dashboard Instrument Cluster. Comments on "Mercedes seven speed 7G Tronic Plus problems causing no gear selection". I think mine as gone I have a scanner coming this week I will check it I only live down the the road from you in Ripley could I bring the conductor plate in to you myself or would you rather I go through the postal procedure.

Thanks Karl. Hi Karl, you are more than welcome to bring us your part. These guys have helped me a few times now on different cars. Great service Fully recommended.

Sent a Renault dash into them, came back fixed in a good time, great communications while it was being done! I really appreciate the work the company has done. Really nice. Click to read more www. All Rights Reserved.The Mercedes-Benz 5G-Tronic automatic transmission, also known as a It is fitted to a number of vehicles within the Mercedes-Benz range, as well as some Jeep, Jaguar, and Ssangyong models. See the bottom of the page for a list of vehicles this transmission is fitted in.

The seals around the connector harness of the The fix for the leak itself is relatively simple, requiring a replacement harness.

If you notice your The Replacement electrics packs can be fitted. The valve that controls the torque converter lockup in the The valve itself can be reamed and replaced, fixing the problem. In some cases, a replacement torque converter may also need to be fitted. The biggest problem faced by owners of a vehicle running a This usually occurs when the transmission has run somewhere in the region of 80, miles since new or since the last time it was overhauledand will require a full overhaul to repair.

On vehicles where the transmission cooler is built into the standard engine radiator, it is quite common for the pipes to corrode, allowing engine coolant to contaminate the transmission fluid. The ingredients of the engine coolant break down essential materials inside the transmission, exponentially accelerating wear of the clutches and causing the transmission to fail.

If you have a vehicle with a This list should be used as a guide only, there may be exceptions cross-over models, for example where a vehicle on this list is not running a Oil Leak The seals around the connector harness of the Faulty Electrics Pack The Torque Converter Lockup Valve The valve that controls the torque converter lockup in the Wear and Tear The biggest problem faced by owners of a vehicle running a Water Contamination On vehicles where the transmission cooler is built into the standard engine radiator, it is quite common for the pipes to corrode, allowing engine coolant to contaminate the transmission fluid.

Vehicles Running the It was installed on all rear-wheel drive cars. It is designed on the basis of automatic transmission of the 6th series and many parts are interchangeable. Theoretically ideal is the 6-speed for the stepped automatic transmission. Where the gear ratios are brought together and divorced enough to comfortably jostle in urban traffic jams, and to save fuel during long delays on an unlimited route.

And thus that the switching of speeds were carried out imperceptibly, but without excessive fuss, when the driver brakes before dispersal. But in Traditionally, in the 9th series, Mercedes engineers laid the controlled slippage of the clutches of the torque converter, which is already connected from the first speed from the lowest speed.

To do this, just press the accelerator pedal. And this feature of the 9th series results in the rapid contamination of the oil by the clutch of the bagel and the rather early need for repair of the GDT. Strongly not waiting for the cherished tkm. The whole family For AKP before there were four types of oil filter and crankcase.

Now install two different oil filters and crankcase. The oil level here is very important, therefore the design allows it to be easily maintained and checked. At the moment, there are two different types of oil for the gearbox: ATF red, tolerance Frequent oil changes markedly prolong the service life of the box. For bulkheads, the services are still preferred by reliable and expensive original overlays.

Frictions on Mercedes fashion — one-sided, are replaced most often by frictions of package K2. They are followed by K1 clutches, but with burned oil it is advisable to change the complete set of friction discs.

Mercedes W211 transmission problems

To all the above sets for a typical overhaul of an overheated box, almost always order another set of pistons. In the bulkhead, the clutch packages K1 and K2 are checked first. It is there that one-sided clutches are burned. Masters claim that it is because of the abnormal operation that the hydroplates do not receive the required oil pressure properly, the clusters are burning, and all other problems are happening along the chain.

Since the designers provided repair of the hydraulic unit without dismantling the automatic transmission, this problem, noticed on time, is solved with relatively little blood.

Oil is used here for two generations, differing: red to and blue after.

7g tronic problem

The problem of capricious electronics has very much spoiled the image of Mercedes as a reliable manufacturer. Replacement of the motherboard and hydroblock of the first issues of Mercedes accuses Siemens of everything. Keep in mind, in this mode the car accelerates not so actively, but still rides. You can still live, but no longer work.

B A Transmissions LTD

And although the iron of this automatic is very reliable, but because of malfunctioning electronics, the problems of the oil pump lead to a chain of problems with the rear planetary series, with bushings. Many owners manage to prevent them, putting the car on time in the repair of automatic transmission. Owners of this modern and very comfortable automatic transmission should take it as a rule not to overheat the automatic transmission and in every visit to the car maintenance check the automatic transmission oil for color, the presence of dirt and shavings in the pallet.

Yes, and change the oil with a filter every 60 tkm. Once every two years, such costs for maintenance of automatic transmission — a small fee for the confidence in his horse. For reset, adaptation and personalization of 7G-tronic gearboxes possible using: 1. Mecedes Extreme 3. Your email address will not be published. May 07 All about Mercedes 7g-tronic gearbox For my case, first I notice a jerk when I change gear, it was a mild one, which I though was normal big mistake as it was still under warranty should have go and get it checked.

Now I sometimes feel jerk or pull feeling when the auto transmission goes from 2nd to 3rd gear on cold start not every time though. Mine is W The jerk only happen in the morning when I didn't wait for the RPM to drop below Usually when you start the car in the morning the RPM is around 1, and takes around mins to drop to If I try to shift to D mode. I do get the jerk but if I wait for a minute or two. No more jerk. I get that jerk too in the morning. So this is a normal issue for W?

What I do is when I change from P to D, I depress the brake quite hard, remove the electronic park brake then slowly and gently shift the gear then there is no jerk. I don't wait for a minute but probably after the car finishes revving at the start.

Works most of the time this method. Im having the normal gear change jerk frm 2 to 3 also, the rest it feels like engine breaking all the time across all gear when foot pedal was off.

mercedes 7g tronic problems

Mine is w Still no conclusion. Their staff should be able to help. Can also look for their boss DJ. You can post now and register later. If you have an account, sign in now to post with your account. Paste as plain text instead.

Only 75 emoji are allowed. Display as a link instead. Clear editor. Upload or insert images from URL. Recommended Posts.Log in or Sign up. Mercedes-Benz Owners' Forums. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More. I am just in the process of ordering a new C Class, and am poring over the details on all the forms I have been sent.

One thing that stands out is that under 'Special Equipment' it is showing that 9G-Tronic is included. The price summary agrees with the price that I have agreed with the dealer, so it hasn't just been sneaked in as an extra. Peter LankyOct 13, I think it's engine dependent which gearbox you get.

JBellOct 13, My friend has the 9g in his ECDI. Seems like a lovely smooth box with a very long top gear. YugguyOct 13, The 9G box is very long legged, mines sits at 1, RPM for 70mph. It doesn't often stay in 9th but you only know what gear you're in by looking at the display. Another huge benefit of the 9G box is that it coasts better than a manual knocked out of gear. You'll find yourself just braking coasting behind other vehicles as it just doesn't lose speed, great for fuel economy if you plan ahead and don't brake.

BlobcatOct 13, Submariner1Oct 13, It would be a nice bonus if it's not a misprint, but then I would need to be sure that this didn't take it into a higher tax bracket. Submariner1Oct 14, I've just checked the latest brochure for production from 1st December. Peter LankyOct 17, You must log in or sign up to reply here.

mercedes 7g tronic problems

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Mercedes-Benz Owners' Forums. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More. Software Update - 7 spd gearbox.

I've been reading with interest the sticky about, amongst other things, the software update for the seven speed auto gearbox and wonder what exactly was the defect it fixed? Can anyone please describe the symptoms of the fault?

Many thanks. The main complaint was hard changes fro 1 and 2 gears, this involves someone with STAR who knows the boxes to re adapt the torque converter lock up. I know that Colin at MBS is very good at this and I have been in two cars that he has set up and the changes were seamless and you never felt a thing.

It's to fix the harsh two into one shift. It can help but IMHO it's such a complex box missing parts like sprag clutches over the 5g box to smooth down changes. I never liked a single car I've driven with this box. You should study the workings Steve of the 7g box, there is more than one way to skin a cat. The fact that adaption done correctly fixes most of these faults, and the fact that most of us have perfect changes shows that it is not needed, things do move forward with new ways of doing things.

This subject becomes boring Steve and you have no right at all to insist that my 7g is anything other than a delightful perfect box, the same as many others have told you. Exjag - If you are happy with the box at the moment, I'd leave well alone.

I had a software update on my 7G done in March last year to fix a harsh shift from 2nd - 1st. This happened only when the box was cold, it was fine when warm. Apart from that, I thought the 7G box was excellent with very smooth predictable shifts and an uncanny knack of being in the right gear nearly all the time. Since the software upodate, the professional chauffeur has been replaced by a learner driver and the car has never been right since. It has been back to 2 main dealers and one indy to reset the adaptions in an attempt to restore the previously excellent performance - with only limited success.

I can tolerate the car now, but it is not as good as it was or should be. Very few people seem to be able to set up these gearboxes correctly, so my advice would be to leave it alone and keep the dealer away from it. JodelJan 6, Well if the box is bad don't buy it. If they have updated it and adapted it and still the same means never get rid of it. Theres 7g plus It is supposed to be better.

Alex had a very nice 7g box in his R class. Colins first R class had a very nice 7g box. You must log in or sign up to reply here.When changing from 2nd to 1st, there will always be a jerk. In auto mode, there will still be a slight jerk when changing from 2nd to 1st. And I notice that from 2nd to 3rd, the car will pull away slightly quicker just when the gear has been engaged.

Any 7G-Tronic users out there facing this problem? Mercedes auto-transmission isn't jerk free, so it could have some jerks whilst changing gears. Most they could do is probably to change the transmission fluid or re-program the ecu.

Previously my dads Citroen C5 had similar problems but after uploading an updated software gear change is brisky and smoother. But still got the down shift problem which they cannot resolve. There's always the thumping feeling from 3rd gear to 2nd. I wonder why conti have these problems. Probably multi-speed gearbox is still in the tuning stage.

7G-tronic problem - Help

The Japanese dun have these problems. The previous models of mercs with 4-speed gearbox have no problems. I think it's still in the stage of perfecting the software. Went for repairs thrice already and problem is not fixed. So, all Mercedes are like this? However, changing from 2nd, 3rd, 4th all the way to 7th and vice-versa are jerk-free. Its only 2nd to 1st Its not hard acceleration or pronounced engine brake. It only happened when braking and when the gear shift from 2nd to 1st.

It will lag awhile then the huge jerk comes after it. My car BMW had the same problem when slowing down to a stop and when it's shifts from 3rd to 2nd all BMW's start on 2nd gear unless in Sports modethere will be a jerk.

Did some research and found out it was an issue. Called PML and booked my car in for a transmission software reflash.

This early problem with 7 Gtronic is discussed at MBWorld. A new gear firmware is avail to resolve it. How new is gear firmware? Cause my vehicle just went for repairs last 2 weeks and its still not fixed.

Not trying to start a war here and not blasting the Merc brand but if its part of the design