Do you know your car's MoT and mileage history? Our user profiles will show you for FREE | No thanks
Ask a Question

Big dripper

I am faced with a bill of over £600 for a replacement ECU in my wife's MKI 2004 Skoda Octavia VRS, as it failed due to water ingress. Is there some sort of design fault that has caused this? Surely an ECU should be sited and designed so the likelihood of this is minimal? Is this a known problem on this model?

Asked on 20 February 2010 by M.L., Huntingdon

Answered by Honest John
Terrible design and botched maintenence. The pollen filter lives in the vent well in the bulkhead, but is inaccessible. The vent well drains can get blocked, the pollen filter waterproof cover can get damaged, or the whole thing can get misfitted after the pollen filter is replaced when the garagehand finds he can't do it in the time he is allowed. Any of these allow rainwater into the car straight through the pollen filter. Same on Golfs, Leons and A3s, but the design was improved on Polos, Ibizas and Fabias where the filter can be removed and replaced from inside the passenger compartment.
Similar questions
We have a year 2000 Skoda Octavia estate 1.9 TDI and we'd like to know where we can find the ecu please?
I have a 52 plate ex-police force Skoda 1.8T with around 95,000 on the clock and service evidence would suggest the mileage is correct. Recently, though, the engine warning light symbol has come on and...
I have a Vauxhall Zafira 2000yr. A few weeks ago I was driving and the car cut out, stereo and lights work ( ruling out battery ) but the windows wouldnt go up and down. I took it to a garage and they...
Related models
Classy hatchback with a premium interior. Wide choice of engines including efficient TDI models. quattro models corner sharply. S3 can be a blast to drive.
5 Stars for 20v and Cupra. Best looking, best handling car on Golf IV floorpan, with 35mpg economy potential. 130 and 150PS diesels.
Satisfying drive and responsive engines. Decently built. Owners rate them highly. The vRS is quite pacy. Practical estate is better than the saloon. Taxi drivers loved the 1.9 TDI and many did 200k miles plus.

Ask Honest John

Value my car

Amount to borrow
Sorry. The minimum loan amount is £1000
To pay back over

My credit score

Best available rate 9.20%

Total repayment £9,304.93

Total cost of credit £1,804.93


60 monthly payments

Apply now

Representative example

The Representative APR is 13.2% (fixed) so if you borrow £7,500 over 4 years at a rate of 13.2% p.a (fixed) you will repay £199.21 per month and repay £9562.20 in total.