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Citroen C4 2.0 16V HDI 136 Tuning options available:
Stage 1 Remap DPF delete (Siemens SID803) - Our Stage 1 remap gives 170BHP and a torque increase to 390Nm. We've developed these remaps not only to give optimal performance, but also to remain within the limits of the stock hardware of your vehicle so you don't need to worry about your clutch or your dual mass flywheel. Power delivery will be smooth and constant through the entire engine range and will make overtaking much easier.
The 2.0 HDI 136 comes fitted with a DPF system, you'll need to remove this for the full power stage 1 remap. Luckily HDI Tuning Ltd have a safe and reliable DPF delete solution which won't give future problems (many other companies will use software to remove the DPF which can cause turbo problems).
Take a look at a dyno print out for the 2.0 136 engine:
2.0 16V 136 HDI Dyno print out - 165 BHP or 170 BHP
Mild Stage 1 Remap - If you're looking for a power increase without modifying your car, then the best option for you is our DPF friendly remap. This keeps AFR high to prevent the DPF filter from clogging. You'll still get good power gains with 165 BHP and 370 Nm of torque.
Online price: If you have the correct equipment you can read/write the ECU yourself, the remap is just £99. For both SID803 and also SID803A you can open the ECU and program to the BDM pads, we have a video guide available. If you have the SID803A then you can also program this one direct through the OBD port using Kess V2 (this does not work for SID803 and the maps are in the processor instead of the flash memory).
Postal remap service: You can send us your ECU and let us do all the hard work for you. Price £150.
Drive in service: If you're within driving distance of bristol, it's well worth bringing your car in to us for the complete in shop service. Not only is this much easier for yourself, but you also get a very thorough diagnostics/testing session included. You can leave our workshop knowing that your car is performingly properly will be aware of any other recommendations we make. If your car is in need of a service we can also do this before carrying out the remapping work at a very competitive price £200.
The EGR is tricky to get to on the 2.0 16v engine, and the plug needs to be removed from the solenoid before we can delete the EGR function. If you can fit an EGR blanking plate before your remap this will be beneficial, but it isn't 100% necessary if the EGR is not stuck open, as removing the electrical connector will prevent it from operating, associated faults will be removed from the ECU.
You can't remove the EGR without removing the DPF system as it is required during regeneration. If you're not sure if you require EGR delete, please read here.
Important: These options are only available for cars fitted with the Siemens SID803 or SID803A ECU, please double check before bringing the car in to us.
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