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17th November 2021, 14:01 | #76 |
BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Lovely write up and sad to see a dealer behaving like this. If you ever do get around to installing LED lights, I would be very interested to read up on that. I had updated to the same Hu couple of years ago and have got visual OPS working on the system. But that took a lot of time to sort out. There is an ECM type of box behind the speedometer housing. That had to be changed to a higher variant to get it to finally work. It was really a very difficult install and took a lot longer than we imagined. |
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17th November 2021, 14:07 | #77 | |
Distinguished - BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
Actually the OPS module in my car (the box you mentioned) is communicating over CAN and is the same as the Highline variant which has OPS. So I don't think it is an issue per say. Yours I believe had the RCD 320 as standard from the factory. Cars with this HU had a downgraded OPS module which only supported beeps, not visual display. The issue is the radio. Due to some wiring constraints, it isn't communicating over CAN and thus is unable to get inputs from the OPS module. The one in my car as I mentioned does support visual feedback. | |
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17th November 2021, 16:14 | #78 |
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| Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Great write-up. I have always adored the Jetta. Clean, no-nonsense and a fantastic car. The 2.0 TDI too is a great engine. The DRLs look great too. Quite surprised to see this kind of language and response from N2 Autotech - I had only heard good things about them and in fact had planned to get them to help me with some of my planned upgrades on my Polo - I do keep visiting Pune. If this is how they treat paying customers or prospective customers, will steer clear! |
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17th November 2021, 17:56 | #79 |
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| Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Want to replace halogen bulbs of reversing light to LED of my HL Jetta. Any pointers on where to get them is requested as no more Aliexpress now. Thanks |
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17th November 2021, 21:05 | #80 | |
Distinguished - BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
The issue is the Amazon listing for the same bulbs has also been removed. Try desertcart and see if it works. If you have any further queries, hit me up. Last edited by vishy76 : 17th November 2021 at 21:07. | |
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17th November 2021, 23:20 | #81 | |
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Infractions: 0/1 (7) | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
Contrary to colloquial lingo, it's incorrect to call the electrical non-compliance errors related to lighting as "canbus errors". Many online sellers sell the replacement aftermarket bulbs/LEDs as "canbus bulbs". The intention is conveyed, but the semantics is not quite right. "Error free" LEDs is the right way to name it. There is nothing called "CANBUS error" to be honest. CANBUS is only the communication link, that allows a computer to indicate an error on the instrument cluster, as a warning lamp and/or MID message. To put it in perspective, a check engine light (CEL) or a door ajar warning have to be called CANBUS errors, then. This is what I mean when I say, the semantics of how bulb errors are described in online forums, is not exactly correct. They are just 'electrical errors' , they are not 'canbus errors'. CANBUS is only a communication link between all the computers (controllers, "ECU"s) on the car. It is a logical link, not an electrical one. The Body Control Module (BCM) or a dedicated Lighting Control Module (LCM) will be the one which handles all lighting related controls - it will have bulb monitoring circuits on it's board, that 'detect' the current drawn by the bulbs/lights/LEDs which are under it's control. When the driver turns on/off a switch - this 'computer' receives an interrupt and decides what to do based on how it interprets the driver action. Hence, the job of 'powering up' or 'powering down' is an indirect control, not just with relays etc, but also with the involvement of software. Now, the computer in charge of lighting controls, is also doing a job of 'bulb monitoring' - ie checking what current is drawn by the bulb when the car is : (i) on battery power, 12.xx volts (ii) on alternator power, 14.xx volts (iii) when it is switched off (yes, monitoring goes on even if engine is off and car is locked). This is done using by some current measurement ckts local to the computer in charge of this. Whenever it sees : (a) no current (open ckt, bulb fused) or (b) too much current (bulb about to die) or (c) lower current (someone has tampered with the bulb), the ckt will indicate to the computer that something is amiss, and based on which of a/b/c is conveyed, this computer will send the right error message to the instrument cluster computer, via the CANBUS link. So the CANBUS is only the messenger relaying the bad news from one computer to another, it has nothing to do with the generation of the bad news. When LEDs typically replace bulbs/halogens, the typical error is of type (c), because LEDs are non-linear devices, and the equivalent resistance offered by them (in terms of the bulb they are replacing) is far higher, and that in turn, means the current consumed by the LED is far lower than the regular bulb it replaces. So the task boils down to 'somehow draw the same current as if the regular bulb was still here' , a.k.a masquerade the presence of the regular bulb, by 'drawing' the same current, whilst the LED is the one getting used. The solution is to fit a parallel (not serial as you mentioned in your notes) resistance, to jack the current back up to regular bulb current consumption levels. And this is precisely what 'error-free-LEDs' do. They are just LEDs with a parallel resistance and have no right to carry the word 'CANBUS' on their packaging. The trick is to work out exactly how much this resistance has to be, and that is where it is a hit or miss with a proper manufacturer v/s cheap chinese versions. What is noteworthy, is that the total current consumption (current drawn by the bright LED + the current 'wasted' by the parallel resistance) is exactly same as before, when it was a regular bulb. That means there is no power saving, just that there is slightly less heat than before (instead of 95% of heat and 5% light from the regular filament bulb, it is now 80% heat from resistor and 5% heat from LED and 15% light from LED - all numbers just heuristics). So, to summarize, an LED replacing a bulb has to have a parallel resistance, to masquerade as if it were the same bulb as before, and since it's doing that, there is no power saving -- this is the 'error free' LED. All of this, if the bulb in question is 'monitored' by the computer in charge (BCM or dedicated lighting computer). If the bulb getting replaced is not a 'monitored' bulb (90% of cars in india) , just blindly replace with any 12V LED, and it will not only provide brighter light (whether that's what is needed, depends, especially w.r.t headlight & foglamps) , it will also save power. Last edited by venkyhere : 17th November 2021 at 23:26. | |
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17th November 2021, 23:42 | #82 | |
Distinguished - BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
The thing is most aftermarket resellers and more importantly, those on AliExpress used to call it CANBUS error free bulbs. Maybe that's where the lingo came from. Else I am well aware of the fact that the CAN is a communication system used to communicate in a car by distinct modules. Coming to the error part, I frankly find this useless. If you want to put a bulb, you have to find a bulb with a resistance built in and then change it. On a car without this warning, you simply swap the bulb and forget it. I also know many people who run standard bulbs and don't mind the error on the MID. On that note, these DRLs I sourced from desertcart are now available on amazon.in! Here's the link: https://www.amazon.in/dp/B08FDQW35Y/ref=cm_sw_r_wa_api_glt_fabc_08M0WMRMPX2VF9K6731D Once again, thanks to member akshay_rebel for sharing this with me. | |
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17th November 2021, 23:44 | #83 | |||
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| Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
On the matter of speed chimes, I'm not sure why anyone would be comfortable to openly share their experience with removing of the speed chime since it is not legal to remove a mandatory safety mechanism being enforced on present passenger car vehicles. Coincidentally, isn't this something you wanted to do as a side-business for your own commercial gain for your customers in Gujarat? As for his work and service, you have received a perfectly working VCDS cable, which was installed. Most of the queries which you asked him regards your own vehicle were answered, including your understanding of Door Modules, incompatibility of your radio etc. I came to hear about other end of the story this morning. I am of the strong believe that an expert's knowledge, time and trust should not be exploited (even indirectly), which seems to have happened thus triggering a rude, not so appropriate response. So with all due respect, I don't think it is appropriate to make comments like "jumped up salesman" and speak about the decency of his dealings as it tries to paint a disrespectful image of an expert working in a niche field from a few years. Quote:
The other way is to upgrade your Gateway to the one sold on newer vehicles and higher trim levels which have more equipment. If you ever get to trying those, do share if any of these worked for you. If not, we can try and figure out what the wiring changes could be. Quote:
So the screenshot shared came as a surprise to me. It is no doubt uncalled for, the way the conversation seemed to have gone through between the two, but it is only fair that the whole story be shared, which has not been the case in this instance. It turns out that there has been quite a lot of omission of the exchanges and activities going on which led to a conflict between the two individuals. I'd say each owner should contact the agency who wants to work on their car, have the particular work done and then post a review of the work quality, their experience and support. You might just have an incredibly pleasant experience which makes your car a better machine. | |||
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17th November 2021, 23:53 | #84 | |
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| Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
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18th November 2021, 00:10 | #85 | ||
Distinguished - BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
Coming to Nikhil, I have never questioned his expertise. He has earned a loyal customer base only because of his work and that's the reason why I approached him in the first place. I don't have any complaints wrt the cable I bought from him either. You can read the same in the post. I told him I had a Jetta Mk6 and he gave me a VCDS cable for a Mk6. No complains there whatsoever else I would have raised them separately. The issue comes when his tone turned abrupt all of a sudden. I have mentioned again in the post itself that I agree him not revealing the speed chime disabling methods because it's his business and his methods. That's fair on his part. But, not indicating his discomfort in a respectable manner is what shocked me. I contacted him more than a month after the speed chime fiasco (if I may call it that), and that was also for a product enquiry. It had nothing to do with any previous dealings. And there was no interim communication between us either (all comms on whatsapp. Absolutely none on call). I am not here to name call anyone, else this post would have been on a separate thread. I don't want to insult him or defame him, that's not my way of doing things. However, there's better ways to tell me I am in the wrong and "exploiting" someone than calling me cuss words, especially when I have never wronged you at any point or defamed you in person or on a group. Quote:
But, I think the damage is done personally for me. I am not going to deal with him again. That's just my personal opinion. I am not forcing it down anyone's throat. Whoever wants to take business to him can happily do so and I am quite sure he will do a good job of it too. | ||
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18th November 2021, 16:02 | #86 | |
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| Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
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19th November 2021, 05:04 | #87 | |
BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
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25th November 2021, 08:59 | #88 | |
BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
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25th November 2021, 12:08 | #89 | ||||||||
Senior - BHPian | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up!
There are always 2 sides to a coin, and unfortunately, only one side has been presented here. Quote:
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So you admit you were in the wrong and it is the language that is bothering you and the way he communicated it with you. | ||||||||
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25th November 2021, 12:11 | #90 | |
BANNED | Re: Our Silver Sprinter - Volkswagen Jetta 2.0 TDI. EDIT: 92,000 km up! Quote:
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