Fuel gauge
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 415/418
Forum Description: 415/418 Hints, Tips and News
URL: https://www.myhanse.com/forum_posts.asp?TID=12493
Printed Date: 27 March 2026 at 03:41
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: Fuel gauge
Posted By: Joey D
Subject: Fuel gauge
Date Posted: 26 January 2021 at 13:07
| Hello, does anyone happen to have a fix for my fuel gauge always reading 100%? Thanks |
Replies:
Posted By: Fendant
Date Posted: 26 January 2021 at 13:09
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Yep, it is a cheapo car sensor, notoriously unreliable in a boat. Replace it with a magnetic rod sensor from Wema or Phlippi. ------------- Frank |
Posted By: S&J
Date Posted: 26 January 2021 at 18:54
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I found mine used to read 100% until it was about half full and then started to get a little more accurate. ------------- H458 #159 Primal Mediterranean cruising |
Posted By: StavrosNZ
Date Posted: 26 January 2021 at 19:49
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see my post on replacing the factory automotive units with ultrasonic units that have no moving parts in the tank, these are brilliant. https://www.myhanse.com/philippi-tank-monitor-and-sensors_topic12012_post99532.html?KW=StavrosNZ#99532" rel="nofollow - https://www.myhanse.com/philippi-tank-monitor-and-sensors_topic12012_post99532.html?KW=StavrosNZ#99532 ------------- Stephen 2010 H400 #691, Auckland, New Zealand |
Posted By: Joey D
Date Posted: 26 January 2021 at 20:04
thank you 
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Posted By: Pzucchel
Date Posted: 02 March 2021 at 19:17
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it seems i have the same problem on a hanse 588...100% reading all the time. It's not the wurth, i swapped the tanks... However, it is very complicated to access it (port side) and i don't even know the model to order a new one...does anybody know the precise model for a philippi replacement without changing anything else? I had already done the water tank, but i can't find on boatoon the precise reference to the fuel tank sensors for the 588... ------------- Hanse588#55 |
Posted By: Goat Island
Date Posted: 06 May 2022 at 17:35
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I just purchased a 2019 Hanse 588 and fuel tanks read 100%. What was your fix? Do you have link to parts supplier? Thanks Johnny
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Posted By: Arcadia
Date Posted: 06 May 2022 at 20:39
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I have not had this problem yet, but I recall on another post, that the problem is that the float can get stuck in the “full” position when the tanks are filled to the top. I will only fill to 90 percent as a rule. The fix was to remove the sender, push the float down, and put a plastic wire tie on the top to keep it from sticking in the future. ------------- Leon / ARCADIA 2018 Hanse 588 Sag Harbor, NY |
Posted By: Goat Island
Date Posted: 06 May 2022 at 23:09
| thank you for this information. I will try the fix. |
Posted By: AndyS
Date Posted: 07 May 2022 at 16:33
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Just as an interesting side note, our fuel gauge on our 385 has always "worked," but shows the inverse of the fuel level. So a 15% reading means that the tank is 85% full. The previous owner said they tried many fixes - including flipping wires, etc - but gave up, so I have always just viewed it as what percentage has been used. And just happy that it kind of worked! ------------- Andy Moonraker River Dunes, NC |
Posted By: Fendant
Date Posted: 08 May 2022 at 09:16
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Andy, to you use a display your sourced in the US? The European sensors give a reading 0 - 180 Ohm the US sensors give a signal the other way round ( 180 - 30 Ohm ). In Europe they use the "American Signals" for the waste water tenk displays. ------------- Frank |
Posted By: Salar
Date Posted: 16 December 2022 at 20:16
| So do I, My fuel gauge is reading 100% all time... It is not possible to fix it, I call dealer and service 3 times.. nothing , same malfunction. Hanse 418, 2018 model |
Posted By: Miraculix
Date Posted: 17 December 2022 at 16:32
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During the hand-over of my Hanse 418, the sales representative explained, that the fuel sensor is mounted such, that the upper part of the tank cannot be measured. This explains, why the fuel gauge shows 100% for a long time and then works properly. During the initial filling of the fuel tank we "calibrated" the fuel gauge: start tanking: 18% after 10 l: 25% after 20 l: 34% after 30 l: 44% after 40 l: 53% after 50 l: 62% after 60 l: 71% after 70 l: 80% after 80 l: 88% after 90 l: 97% after 94 l: 100% In total 128 l have been filled into the tank. We might have stopped filling a bit early - to ensure that no Diesel is spilled. I have this table always on board - helps a lot. But usually I use the following rule of thumb: 1% on the gauge is 1 l in the tank, if 100% than at least 100 l are left! For me this information is sufficient. Hope this helps Frank Hanse 418#182 Miraculix
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Posted By: Tranquillity
Date Posted: 18 December 2022 at 14:02
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Frank, A very useful post, the numbers you are seeing are very similar to our 418 and like your rule of thumb. Every time we fill up we check the amount fueled against the gauge. Typically when gauge reads 100% you can get another 50-60L, (+/- some days, guessing depends on froth and how far you push the cut off!!) We tend to use the following to work out our range. 100% = 100Litres left in tank. 80% = 80L left, so half full 60% = 50L left, don't go below! Not far off to your figures. Jon. 418#44 |
Posted By: DBDY
Date Posted: 21 September 2023 at 00:21
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Same 100% full issue on 2019 Hanse 418 - fuel tank is the 160 L - that measures approx 21cm at the deepest point. Considering the Philippi TGT020 tank sensor for fuel SKU: 660117080. Has anyone installed this one?
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Posted By: SimonGH
Date Posted: 21 September 2023 at 20:11
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I just replaced mine in my 415 with this: https://a.co/d/6MLtDf2" rel="nofollow - https://a.co/d/6MLtDf2 I was using a YachtDevice tank adapter to take the signal and put it on the N2K bus, bypassing the wurth panel completely. Since that adapter can be configured to 240-30ohm vs 0-180ohm, this part worked. https://yachtdevicesus.com/collections/nmea-converters-adapters/products/tank-level-adapter" rel="nofollow - https://yachtdevicesus.com/collections/nmea-converters-adapters/products/tank-level-adapter If you want a straight drop in replacement for the stock sender that the wurth panel will read, then you need something like this: https://a.co/d/109FalB" rel="nofollow - https://a.co/d/109FalB At least on my 415 the tank hole pattern for the stock sender is the standard SAE measurements, so the replacement was very easy. I basically pulled the connector from the wurth panel end, connected the two wires to the tank adapter, and plugged in the N2k into the bus that is in the same location. Very easy, and then fuel level and % will show up on any network MFD. The other advantage to using the N2k adapter is that you can actually program in the non-linear calibration to correct for the irregular shape of the tank. So if you do it properly you can trust the readout is actually correct! |
Posted By: DBDY
Date Posted: 22 September 2023 at 14:39
| Thank you - amazing price |
Posted By: Issywa
Date Posted: 24 September 2023 at 09:01
| Simon - are you still using the YD device? I’ve heard it’s difficult to configure? |
Posted By: SimonGH
Date Posted: 25 September 2023 at 16:29
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Yes, still using it and now with that new sender it works perfectly. And it's not difficult at all - you basically just put a simple text file on a microSD card that inserts into the end. When it powers up it reads the text file and saves another to confirm the settings. You can change the type of sensor (resistive, voltage, etc), set a tank capacity so then it will feed % full and # of liters / gallons, calibrate for non-linear measurements, etc.
Super easy. |
Posted By: DBDY
Date Posted: 23 May 2025 at 16:31
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SimonGH Can you share the text file detail you used?
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Posted By: Swezeeberg
Date Posted: 19 August 2025 at 22:13
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If I want to open and check if the sensor is stuck in the top (I always have a 100% reading) , When removing the tank sensor, loosening the bolts, are the bolts welded, fixed to the tank, or will the nuts fall into the tank Anybody know from when changing the sensor, or does anybody have pictures of the sensor mount that could guide Hanse 315 y2018
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