Le Tonkinois Varnish
B & D Murkin
UK main importers for
Le Tonkinois varnish
Flexidisc sander
Older Eberspacher Diesel Air Heaters 3 to 4 KW
Eberspacher D3LCC D3LC D3LP D3L Heaters
* Dates are a general indication only, nearly all are best guesses as date information is not published.
The data is provided as a rough guide, check with the Eberspacher manuals if it is critical.
D3LCC also known as D3LC Compact, D3LP compact
Manufactured 1989*, replaced by D3LCC 1996
Automatic settings Start High Med Low Standby.
Heat output D3LC 3500 2800 1500 1000 0 watts.
Heat output D3LP 3000 2500 1500 900 0 watts. Low noise version of D3LC.
Fuel consumption 0.34 0.18 0.12 0 l/hr.
Current 12v approx 3 1 1 0 amps
Current 12v with glow pin on during start approx 20 amps
Length 422, Width 155, Height 167 mm.
Combustion air inlet pipe 25 mm, Exhaust outlet pipe 24 mm.
Start current is double that of an Airtronic D4 so thicker cables needed.
Not as easy to service as the D4, some parts of the heat exchanger cannot be reached for mechanical cleaning.
Spare parts availability Reasonably ok.
Gaskets, glowpin and screen same as D3LCC.
20 to 25 years old so getting towards end of Eberspacher support for items like ECU.
Servicing information generally similar to D1LCC.
The D3LC comes in 5 release versions, R0, R1, R2, R3, R4. The number should be printed on the ECU.
Only R3 and R4 versions have ECU locking.
The diagnostics work with modern diagnosis equipment like 701 or 801 controllers.
There are also some simpler diagnostics built into the D1LC.
If you connect pin 4 and pin 6 on the controller (yellow and black/white wires) together for between a half and two seconds the controller light should blink the fault codes.
Download this pdf for the details and the output codes http://www.avtonomka-
I have not tried it as we have no D3LC model. See Controllers page 301 modulator for a circuit.
Photographs showing each stage during servicing would be welcome for including on our site as would reasonable quality pictures of the D3LC.
Eberspacher D3L
Manufactured from ???? to 1989*.
One dated 87 88 89 was fitted in a new boat in 1989, others are dated 1981 1983
Heat output 3200, 1800 watts.
Fuel consumption 0.38 l/hr, low value not quoted.
Power consumption 45 watts
Current 12v approx 4 amps
Current 12v start, glow pin on, 21 amps
Manufactured in 12 and 24 volt versions.
Length 425, Width 148, Height 160 mm.
Combustion air input pipe 25 mm
Exhaust outlet pipe 24 mm.
Spare parts availability Obsolete, parts running out.
Glowpins are sometimes listed on Ebay.
Servicing details are on the D3L service page.
Very basic heater, two speed operation, over 25 years old.
Usually fitted with a thermostat controller wired to switch the heater either on / off or between high / low settings.
External ECU having 2 & 6 way connectors and a motor fuse. One D3L sold on Ebay had a different ECU.
Round rubber bung on top of heater unit covering thermal safety cutout switch.
There is no glowpin screen fitted on this model, a wick does same function.
Fuel is supplied to a rotating open fuel distributor on the blower shaft.
Eberspacher say they are coming towards end of supported life, spares may not be available for much longer.
Normal switches or thermostats can replace a faulty Universal switch on a D3L.
Manufactured 1996, replaced by Airtronic D4 2003*
Automatic settings Boost High Med Low Standby.
Heat output D3LCC 3500 3200 1500 1000 0 watts
Heat output D3LPC 3000 2500 1500 900 0 watts Low noise version of D3LCC
Fuel consumption 0.42 0.37 0.18 0.12 0 l/hr.
Current 12v approx 3 3 1 0.7 0 amps
Current 12v with glow pin on during start approx 20 amps
Length 422, Width 142, Height 142 mm.
Combustion air inlet pipe 25 mm, Exhaust outlet pipe 24 mm.
Spare parts availability Excellent
This heater used by military so parts will be manufactured if none available.
Wiring connection details same as D1LCC
Full servicing information same as D1LCC.
Fault finding information see Faults pages.
Start current is double that of a D4 so thicker cables needed.
Not as easy to service as the D4, some parts of the heat exchanger cannot be reached for mechanical cleaning.
Gaskets glowpin and screen are readily available.
Higher heat version of D1LCC so servicing will be the same.
Servicing details are also in the Installation Troubleshooting and Parts manual. If you need a copy we can email a pdf version in exchange for some photographs.
We understand there is a ventilation function but it is not documented in the manuals. Ventilation mode is not compatible with modern controllers.
Photographs showing each stage during servicing would be welcome for including on our site as would reasonable quality pictures of the D3LCC.
Eberspacher D3LC, D3LP
Servicing photos
If you service a model we have not fully covered here we would like to incorporate the details and photos to help others. We would need a full set of good or at least reasonable quality pictures and a description of each stage. Ideally photos should be high resolution as possible, preferably the original unedited and uncropped versions, on a cd or dvd if too big to send by email.
I can edit, add arrows etc. We always acknowledge the source of such photos.
If your heater is really carboned up we would welcome detailed photos to add to our pages.
Photos of specific problems are also of interest.
Page 1 covers Airtronic models D2 D4 D5
Page 2 covers older models D1LCC, D1LC, D1L, B2L, D2L, BN2
Page 3 covers older models D3LCC, D3LC, D3L.
Page 4 covers older models D5LC, D5L, D4L.
