![]() ![]() Perhaps you should try that fix first if the high price/low confidence fix you have had proposed bothers you, and report back here. I was told that the Toyota fluid keeps the valve body clean doesn't tend to burn up and clog the works. In certain overseas export markets Elf transmission oil is unobtainable and Renault owners have used the Toyota transmission fluid after completely flushing crud from the system and the most noticeable result is that their fluid eliminates the change down thunk that you find so disconcerting and eliminates the lag/thunk on quick take off starts. The servicing agent recommends sticking with the Elf recommended fluid, and I did so, but I have a notion that the Toyota fluid replacement after complete flushing is probably a cheaper and more effective first fix, the same transmission is fitted to quite a number of other vehicles, Volvo, and other Japanese vehicles and they do not specify the rather expensive Elf product. I had the transmission serviced a few months back for the same reason you have and the valve body replaced with a refurbished unit, (well under $2,000) and it has performed well since. My V6 2002 Laguna has had the benefit of frequent oil changes, with long periods of highway use. ![]() ![]() Looking forward to hearing your thoughts. It's a tough one for me, because although I don't mind spending money on the car to make it run well, $2000-3000 is a lot of money for me, and I didn't come away with a feeling of confidence from the specialist that the proposed repair would actually solve the issue, or whether they were just recommending the particular repair because it's cheaper for them to suggest it then to dig deeper and find the actual problem. I'm trying to decide what to do next, that is, do I seek a second opinion, or do I try having someone replace the transmission fluid for me first to see if it makes an improvement? So I'm interested to hear from other Aussie Frogs as to what they would do next if they were in my situation. Other's have had to have their transmissions rebuilt (or have been told they have to have their transmissions rebuilt) for uncomforting sums of money. I've found many people have had similar symptoms with the transmissions in their Laguna's automatic transmissions, and of those people, some have experienced major improvement by simply draining the transmission fluid and replacing it with a specific Toyota Type 4 fluid instead of the manufacturer's recommended Mobil fluid. I've since jumped on the interwebs to research the subject as much as one can when one is not a mechanic by trade. I haven't as yet, proceeded with the work. When I asked about what the problem is, I was told that replacing the valve body would 'probably' fix the problem as it was likely to be a fault with the valve body that was causing the clunk.įor me, this seemed an alarming sum of money to spend on something that would 'probably' fix the problem. Seemingly, from this information alone, their recommendation was a valve body replacement at a cost of nearly $2000 if a refurbished part was to be used, or nearly $3000 if a new part was to used. They checked the operation of the vehicle and confirmed the same symptoms that I'd described. The specialist looked over the car with their own diagnostic equipment and no alerts came back that pertain to the transmission. I found one that came highly recommended by others, so I booked my car in to be looked at. The particular specialist recommended was quite far away from where I live, and so I did a search for recommended transmission specialists closer to my area. He ran limited diagnostics on the car and said there was an alert coming back for 'solenoids' but referred me to a specialist, as he thought they would be better suited to the job. When I had the car serviced last, I requested my mechanic have a look at the transmission. This problem of not being in gear only happened once and has not happened again, but the clunk persists. Recently, when stopped at a red light, the car fell out of gear so that when the lights changed to green and I tried to accelerate up the hill, the car rolled backwards and I had to brake, then change gears until the car went back into gear. Sometimes the clunks are gentle and other times they can be quite abrupt. Over the last 12 months or so, I've noticed a clunk in the automatic transmission when it changes down gear as the car is slowing. I've also had to replace several ignition coils, and three of the four power window mechanisms. ![]() In the time I've had it, I've had it serviced in accordance with the logbook schedule. When I bought it, it had about 76,000 KM on the clock, and had been regularly serviced. I have a 2003 Renault Laguna Privelege LX Hatch (auto) which I purchased second hand in 2009. ![]()
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